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Mix Examples- Strategies for Enhancement in Food Production Questions in English

Class 12 Biology · Strategies for Enhancement in Food Production · Mix Examples- Strategies for Enhancement in Food Production

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51
EasyMCQ
Which of the following is the richest source of plant protein?
A
Chickpea
B
Soybean
C
Wheat
D
Rice

Solution

(B) Soybean $(Glycine \ max)$ is considered the richest source of plant-based protein. It contains approximately $40\%$ protein and $20\%$ oil. It is a legume that provides a high-quality protein profile,making it a staple in vegetarian diets for protein supplementation.
52
EasyMCQ
What is the quarantine regulation associated with?
A
Spraying pesticides on diseased plants
B
Promoting dryland farming in sandy soils
C
Preventing the entry of diseased plants into the country
D
Growing fruit trees in every state

Solution

(C) Quarantine regulation is a legal measure implemented by governments to prevent the introduction and spread of pests,pathogens,or diseases into a country or region. It involves the inspection and restriction of the movement of plants,plant products,and other materials that may harbor harmful organisms. Therefore,it is primarily associated with preventing the entry of diseased plants or pests into the country.
53
EasyMCQ
Sunflower is primarily cultivated for which of the following?
A
Protein
B
Starch
C
Oil
D
Alkaloid

Solution

(C) Sunflower $(Helianthus \ annuus)$ is an important oilseed crop. It is primarily cultivated for the extraction of edible oil from its seeds,which are rich in unsaturated fatty acids.
54
MediumMCQ
Which of the following cereals is a pseudocereal?
A
Sorghum
B
Pearl millet
C
Buckwheat
D
None of these

Solution

(C) pseudocereal is a plant that produces seeds that are used and consumed as a cereal,but it does not belong to the grass family $(Poaceae)$.
Buckwheat $(Fagopyrum esculentum)$ is a classic example of a pseudocereal because it is a dicotyledonous plant belonging to the family $Polygonaceae$,unlike true cereals which are monocots.
Sorghum and Pearl millet are true cereals belonging to the grass family.
55
EasyMCQ
Which of the following fiber crops is grown over the largest area in India?
A
Jute
B
Cotton
C
Flax
D
Sesame

Solution

(B) Cotton ($Gossypium$ $spp.$) is the most important fiber crop in India. It is grown over the largest area compared to other fiber crops like jute,flax,or hemp. It plays a significant role in the Indian economy and textile industry.
56
EasyMCQ
Which of the following has provided the main food source for humans?
A
Millets
B
Cereals
C
Pulses
D
Oilseeds

Solution

(B) Cereals (such as wheat,rice,maize,and barley) are the primary source of food for humans globally. They provide the majority of the caloric intake and essential carbohydrates required for energy. While pulses,millets,and oilseeds are important components of the human diet,cereals constitute the staple food for the majority of the world's population.
57
EasyMCQ
Which of the following plants is primarily cultivated for the extraction of oil?
A
Rose
B
Groundnut
C
Marigold
D
Sunflower

Solution

(B) Groundnut $(Arachis \text{ } hypogaea)$ is a major oilseed crop cultivated primarily for the extraction of edible oil. While sunflower is also an oilseed, groundnut is one of the most widely cultivated crops specifically for this purpose in many regions. Rose and marigold are primarily cultivated for ornamental purposes.
58
MediumMCQ
Which of the following statements is $NOT$ a part of $IPM$ (Integrated Pest Management)?
A
Use of resistant varieties
B
Use of crop rotation
C
Biological and mechanical control of pests
D
Regular and excessive use of pesticides from the beginning to the end of the crop cycle

Solution

(D) $IPM$ (Integrated Pest Management) is an ecosystem-based strategy that focuses on long-term prevention of pests or their damage through a combination of techniques such as biological control,habitat manipulation,modification of cultural practices,and use of resistant varieties.
$1$. Use of resistant varieties $(A)$ is a key component of $IPM$.
$2$. Crop rotation $(B)$ helps in breaking the life cycle of pests and is a standard $IPM$ practice.
$3$. Biological and mechanical control $(C)$ are core methods used in $IPM$ to reduce reliance on chemicals.
$4$. Regular and excessive use of pesticides $(D)$ is contrary to the principles of $IPM$,which aims to minimize chemical use and only use them as a last resort when other methods fail.
Therefore,option $D$ is not a part of $IPM$.
59
EasyMCQ
From which of the following can a milk-like substance be prepared?
A
Grapes
B
Chickpeas
C
Barley
D
Soybean

Solution

(D) Soybean is a rich source of plant-based proteins and fats. It is widely used to produce 'soy milk',which is a milk-like substance prepared by soaking,grinding,and boiling soybeans in water. This serves as a popular dairy-free alternative to cow's milk.
60
MediumMCQ
Which of the following crops produces recalcitrant seeds?
A
Wheat
B
Maize
C
Tea
D
Rice

Solution

(C) Recalcitrant seeds are seeds that do not survive drying and freezing during ex-situ conservation. They are sensitive to desiccation and low temperatures. Among the given options, $Tea$ $(Camellia \text{ } sinensis)$ produces recalcitrant seeds, whereas wheat, maize, and rice produce orthodox seeds that can be dried and stored for long periods.
61
MediumMCQ
What is the primary objective of crop rotation?
A
To increase soil fertility
B
To decrease soil fertility
C
To prevent soil erosion
D
To prevent water erosion

Solution

(A) Crop rotation is the practice of growing different types of crops in the same area in sequential seasons.
The primary objective of crop rotation is to maintain or increase soil fertility by preventing the depletion of specific nutrients.
For example,planting leguminous crops helps in nitrogen fixation,which replenishes the soil with nitrogen,benefiting the subsequent non-leguminous crops.
62
EasyMCQ
The $IARI$,New Delhi has developed several vegetable crops. What are they enriched with?
A
Vitamins
B
Hormones
C
Minerals
D
Both $A$ and $C$

Solution

(D) The $IARI$ (Indian Agricultural Research Institute),New Delhi,has released several vegetable crops that are enriched with vitamins and minerals.
Examples include vitamin $A$ enriched carrots,spinach,and pumpkin; vitamin $C$ enriched bitter gourd,bathua,mustard,and tomato; and iron and calcium enriched spinach and bathua.
Therefore,these crops are enriched with both vitamins and minerals.
63
EasyMCQ
Which is the primary source for food and fodder?
A
Lichens
B
Cereals
C
Fungi
D
Cotton

Solution

(B) Cereals (such as wheat,rice,maize,etc.) are the primary source of food for humans and fodder for livestock globally. They provide the bulk of the caloric intake and are essential for agricultural productivity.
64
EasyMCQ
Which state has the highest production of sugarcane in India?
A
Madhya Pradesh
B
Bihar
C
Punjab
D
Uttar Pradesh

Solution

(D) Uttar Pradesh is the largest producer of sugarcane in India. Sugarcane is a major cash crop,and the state's fertile Gangetic plains provide ideal conditions for its cultivation. It contributes significantly to the country's total sugar production.
65
EasyMCQ
Which insecticide is used for termite control in buildings?
A
Aldrin
B
Dieldrin
C
$BHC$
D
$DDT$

Solution

(A) Aldrin and Dieldrin are organochlorine insecticides that were historically used extensively for termite control in buildings and for soil treatment. These chemicals are highly persistent in the environment and are now largely banned or restricted due to their toxicity and bioaccumulation properties. Therefore,$A$ is the correct answer.
66
MediumMCQ
What do pesticides include?
A
Fungicides,nematicides,and rodenticides
B
Insecticides,herbicides,and rodenticides
C
Herbicides,insecticides,and nematicides
D
All of the above

Solution

(D) Pesticides are chemical or biological agents used to control pests that damage crops or affect human health. The term 'pesticide' is a broad category that includes various types of agents designed to target specific organisms:
$1$. $Insecticides$: Used to kill insects.
$2$. $Herbicides$: Used to kill unwanted plants or weeds.
$3$. $Fungicides$: Used to control fungal growth.
$4$. $Nematicides$: Used to kill nematodes (roundworms).
$5$. $Rodenticides$: Used to kill rodents like rats and mice.
Since all the options listed $(A, B, C)$ represent different types of chemical agents used for pest control,the correct answer is 'All of the above'.
67
EasyMCQ
Which is the most common plant used as green manure in India?
A
Sunflower $(Helianthus \ annuus)$
B
Sunn hemp $(Crotalaria \ juncea)$
C
Sesame $(Sesamum \ indicum)$
D
Pigeon pea $(Cajanus \ cajan)$

Solution

(B) Green manure is a type of cover crop grown primarily to add nutrients and organic matter to the soil.
In India,$Crotalaria \ juncea$,commonly known as Sunn hemp,is the most widely used plant for green manuring.
It is a leguminous plant that fixes atmospheric nitrogen in the soil through symbiotic bacteria in its root nodules,thereby improving soil fertility.
68
EasyMCQ
Which of the following is an oilseed crop?
A
Caryopsis
B
Paddy
C
Sunflower
D
Chrysanthemum

Solution

(C) An oilseed crop is a plant grown primarily for the oil contained in its seeds. Among the given options, $Sunflower$ ($Helianthus$ $annuus$) is a well-known oilseed crop. $Paddy$ is a cereal crop, $Caryopsis$ is a type of fruit (grain) found in grasses, and $Chrysanthemum$ is an ornamental flowering plant.
69
EasyMCQ
Which is the major state producing Basmati rice in India?
A
Kerala
B
Andhra Pradesh
C
Karnataka
D
Uttar Pradesh

Solution

(D) Basmati rice is a premium variety of long-grain aromatic rice that is traditionally grown in the Indo-Gangetic plains.
In India,the major states involved in the cultivation of Basmati rice include Punjab,Haryana,and Uttar Pradesh.
Among the given options,Uttar Pradesh is a significant producer of Basmati rice.
70
EasyMCQ
Which plant is useful as green manure?
A
Crotalaria juncea
B
Vigna sinensis
C
Berseem
D
All of the above

Solution

(D) Green manure is produced by incorporating green plant tissues into the soil to improve its fertility. Leguminous plants are commonly used for this purpose because they fix atmospheric nitrogen through symbiotic bacteria in their root nodules. $Crotalaria \text{ } juncea$ (Sunn hemp), $Vigna \text{ } sinensis$ (Cowpea), and $Berseem$ $(Trifolium \text{ } alexandrinum)$ are all leguminous crops widely used as green manure. Therefore, the correct answer is $D$.
71
EasyMCQ
Which of the following is produced in the highest quantity in India?
A
Potato
B
Sweet potato
C
Tea
D
Maize

Solution

(A) India is one of the world's largest producers of agricultural commodities. Among the options provided,$Potato$ ($Solanum$ $tuberosum$) is produced in the highest quantity in India compared to sweet potato,tea,and maize. India consistently ranks among the top producers of potatoes globally,contributing significantly to the country's food security and economy.
72
EasyMCQ
Which of the following is the richest source of protein?
A
Wheat
B
Maize
C
Groundnut
D
Rice

Solution

(C) Among the given options, groundnut $(Arachis \text{ } hypogaea)$ is the richest source of protein.
Groundnuts contain approximately $25-28\%$ protein, which is significantly higher than the protein content found in cereals like wheat, maize, or rice.
Legumes and oilseeds are generally considered better sources of plant-based protein compared to cereal grains.
73
EasyMCQ
Which is the richest source of plant protein?
A
Chickpea
B
Soybean
C
Wheat
D
Rice

Solution

(B) Soybean $(Glycine \text{ } max)$ is considered the richest source of plant-based protein. It contains approximately $40\%$ protein and $20\%$ oil. It is a legume that provides a complete amino acid profile, making it a high-quality protein source for vegetarians.
74
EasyMCQ
What is $Guayule$?
A
Fodder plant
B
Legume
C
Rubber-producing plant
D
Oil-producing plant

Solution

(C) $Guayule$ (scientific name: $Parthenium$ $argentatum$) is a desert shrub native to the southwestern United States and northern Mexico. It is primarily known as a source of natural rubber,which is an alternative to the rubber obtained from the $Hevea$ $brasiliensis$ tree. It is particularly valuable because it produces hypoallergenic rubber.
75
EasyMCQ
Which region is considered the secondary center of origin for coffee production?
A
Ethiopia
B
Brazil and Central America
C
Malaysia
D
India

Solution

(B) The primary center of origin for coffee $(Coffea \ arabica)$ is Ethiopia. However,Brazil and Central America are considered the secondary centers of origin and production,as they have become the largest producers of coffee globally due to favorable climatic conditions.
76
EasyMCQ
What is the scientific name of pearl millet?
A
Triticum aestivum
B
Pennisetum typhoides
C
Zea mays
D
Sorghum vulgare

Solution

(B) The scientific name of pearl millet (commonly known as Bajra) is $Pennisetum$ $typhoides$ (also classified as $Pennisetum$ $glaucum$).
$Triticum$ $aestivum$ is the scientific name for wheat.
$Zea$ $mays$ is the scientific name for maize.
$Sorghum$ $vulgare$ is the scientific name for sorghum.
77
EasyMCQ
Which is the most widely cultivated fiber crop in India?
A
Sunn hemp
B
Jute
C
Flax
D
Cotton

Solution

(D) Cotton ($Gossypium$ $spp.$) is the most widely cultivated fiber crop in India. It is a major cash crop that serves as the primary raw material for the textile industry. While jute and sunn hemp are also fiber crops,cotton holds the highest economic significance and cultivation area in the Indian agricultural sector.
78
EasyMCQ
Which of the following crops were introduced into India from the New World?
A
Cashew,Potato,Rubber
B
Mango,Tea
C
Tea,Rubber,Mango
D
Coffee

Solution

(A) The 'New World' refers to the Americas. Many crops that are now common in India were originally introduced from the Americas. These include $Cashew$, $Potato$, $Rubber$, $Tobacco$, $Chilli$, $Tomato$, and $Maize$. Among the given options, $Cashew$, $Potato$, and $Rubber$ are crops that originated in the New World and were introduced to India.
79
EasyMCQ
Which of the following is primarily used to make noodles?
A
$Triticum$ $aestivum$ (Common wheat)
B
$Triticum$ $durum$ (Durum wheat)
C
$Pennisetum$ $typhoides$ (Pearl millet)
D
$Sorghum$ $vulgare$ (Sorghum)

Solution

(B) Noodles are typically made from semolina,which is derived from $Triticum$ $durum$ (Durum wheat). $Triticum$ $durum$ is a hard wheat variety known for its high protein content and gluten strength,making it ideal for pasta and noodle production.
80
EasyMCQ
Which of the following plants is commonly used as green manure?
A
Acacia nilotica
B
Cassia fistula
C
Crotalaria juncea
D
Azadirachta indica

Solution

(C) Green manure is produced by leaving uprooted or sown crop parts to wither on a field so that they serve as a mulch and soil amendment.
$Crotalaria juncea$,commonly known as sunn hemp,is a leguminous plant.
Leguminous plants are widely used as green manure because they possess root nodules containing nitrogen-fixing bacteria $(Rhizobium)$,which enrich the soil with nitrogen.
Therefore,$Crotalaria juncea$ is the correct answer.
81
MediumMCQ
What is a Pomato?
A
Somatic hybridization
B
Allopolyploid
C
Natural mutation
D
Both $(A)$ and $(B)$

Solution

(D) Pomato is a somatic hybrid produced by the fusion of protoplasts from potato ($Solanum$ $tuberosum$) and tomato ($Solanum$ $lycopersicum$).
Somatic hybridization is a technique where protoplasts from two different plant species are fused to create a hybrid plant with characteristics of both parents.
Since the resulting hybrid contains the complete chromosome sets of both parent species,it is also classified as an allopolyploid.
Therefore,both $(A)$ and $(B)$ are correct descriptions of how a Pomato is produced and classified.
82
EasyMCQ
Which state in India is the largest producer of groundnut?
A
West Bengal
B
Uttar Pradesh
C
Gujarat
D
Madhya Pradesh

Solution

(C) Gujarat is the largest producer of groundnut in India. It accounts for a significant portion of the total groundnut production in the country due to its favorable climatic conditions and soil types.
83
EasyMCQ
Where is the Central Rice Research Institute located?
A
Shimla
B
Coimbatore
C
Cuttack
D
Trivandrum

Solution

(C) The Central Rice Research Institute $(CRRI)$ is located in Cuttack,Odisha,India. It was established on $23$ April $1946$ to conduct research on rice cultivation and improvement.
84
EasyMCQ
Which of the following is $NOT$ useful for increasing agricultural production?
A
Mechanization of agriculture
B
Improvement in irrigation facilities
C
Use of fertilizers
D
Deforestation

Solution

(D) Agricultural production is enhanced through modern farming techniques,such as the mechanization of agriculture $(A)$,the expansion of irrigation facilities $(B)$,and the judicious use of fertilizers $(C)$.
Deforestation $(D)$ is the clearing of forests,which leads to soil erosion,loss of biodiversity,and disruption of the water cycle,ultimately harming the environment and long-term agricultural sustainability rather than increasing production.
85
EasyMCQ
What is the botanical name of sugarcane?
A
Saccharum spontaneum
B
Saccharum carica
C
Saccharum barberi
D
Saccharum officinarum

Solution

(D) The botanical name of the common sugarcane cultivated for sugar production is $Saccharum$ $officinarum$.
$Saccharum$ $barberi$ is another species of sugarcane,but $Saccharum$ $officinarum$ is the most widely cultivated species known for its high sugar content and thick stems.
86
MediumMCQ
Which of the following is an oil-yielding crop?
A
Marigold
B
Rose
C
Sunflower
D
Chrysanthemum

Solution

(C) The $Sunflower$ ($Helianthus$ $annuus$) belongs to the family $Asteraceae$. It is widely cultivated as an oil-yielding crop because its seeds are rich in edible oil. Marigold, Rose, and Chrysanthemum are primarily grown as ornamental plants.
87
EasyMCQ
Match the following and select the correct option:
List-$I$List-$II$
$a$. Mendel$i$. Zoology
$b$. Borlaug$ii$. Genetics
$c$. Galton$iii$. Green Revolution
$d$. Aristotle$iv$. Eugenics
A
$a-i, b-ii, c-iii, d-iv$
B
$a-ii, b-iv, c-i, d-ii$
C
$a-ii, b-iii, c-iv, d-i$
D
$a-iii, b-iv, c-i, d-i$

Solution

(C) The correct matches are as follows:
$1$. $a$. Mendel is known as the Father of Genetics, so $a-ii$.
$2$. $b$. Norman Borlaug is known as the Father of the Green Revolution, so $b-iii$.
$3$. $c$. Francis Galton is known as the Father of Eugenics, so $c-iv$.
$4$. $d$. Aristotle is known as the Father of Zoology, so $d-i$.
Therefore, the correct sequence is $a-ii, b-iii, c-iv, d-i$.
88
EasyMCQ
What is a young chicken raised specifically for meat production called?
A
Hen
B
Broilers
C
Cockerels
D
Pullets

Solution

(B) Broilers are young chickens that are specifically bred and raised for meat production. They grow rapidly and are typically slaughtered at a young age (usually $6-8$ weeks) to ensure tender meat. Hens are adult female chickens,cockerels are young male chickens,and pullets are young female chickens raised for egg production.
89
MediumMCQ
In $MOET$,an animal is mated with an elite bull or artificially inseminated. The fertilized eggs are then recovered and transferred to surrogate mothers. Which of the following statements is correct regarding this process?
A
Fertilized eggs at $8-32$ cell stages are recovered and non-surgical procedure is used.
B
Fertilized eggs at $8-32$ cell stages are recovered and surgical procedure is required.
C
Only $4$-celled fertilized eggs are recovered through surgical procedure.
D
Fertilized eggs at $64$ cell stages are recovered and surgical procedure is required.

Solution

(A) $MOET$ stands for Multiple Ovulation Embryo Transfer Technology.
In this process,a cow is administered hormones (like $FSH$) to induce follicular maturation and superovulation,producing $6-8$ eggs instead of one.
The animal is then mated with an elite bull or artificially inseminated.
The fertilized eggs at the $8-32$ cell stages are recovered non-surgically and transferred to surrogate mothers.
Therefore,the correct statement is that fertilized eggs at $8-32$ cell stages are recovered and a non-surgical procedure is used.
90
EasyMCQ
Which insect is reared on the $Opuntia$ (prickly pear) cactus?
A
Lac insect
B
Cochineal insect
C
Honey bee
D
Silkworm

Solution

(B) The $Opuntia$ cactus,commonly known as the prickly pear,is the host plant for the cochineal insect ($Dactylopius$ $coccus$).
These insects are reared on the cactus to produce a natural red dye known as carmine or cochineal extract,which is used in the food,cosmetic,and textile industries.
Therefore,the correct option is $B$.
91
EasyMCQ
Which of the following are exotic breeds in poultry farming?
A
White Leghorn
B
Rhode Island Red
C
White Leghorn and Rhode Island Red
D
Aseel and Chittagong

Solution

(C) In poultry farming,breeds are classified into indigenous (local) and exotic (foreign) varieties.
$1$. Indigenous breeds include $Aseel$,$Chittagong$,and $Kadaknath$.
$2$. Exotic breeds are imported from other countries to improve production traits like egg-laying capacity or meat quality.
$3$. $White \ Leghorn$ and $Rhode \ Island \ Red$ are well-known exotic breeds used extensively in the poultry industry for high egg production.
92
MediumMCQ
Three types of carp fish,namely Catla,Labeo,and Cirrhinus,can be cultured together in the same pond to obtain higher economic yield because they exhibit:
A
Positive response
B
Commensalism
C
Symbiosis
D
No competition for food

Solution

(D) The practice of culturing multiple species of fish in the same pond is known as composite fish farming. Catla,Labeo,and Cirrhinus are chosen because they occupy different feeding niches in the pond. Catla is a surface feeder,Labeo (Rohu) is a column feeder,and Cirrhinus (Mrigal) is a bottom feeder. Since they feed at different levels,they do not compete for the same food resources,which allows for maximum utilization of the available nutrients and higher total yield.
93
EasyMCQ
What is the scientific name of the Oak Silkworm?
A
Antheraea roylei
B
Apis florea
C
Bombyx mori
D
Cleris batrax

Solution

(A) The Oak Silkworm,which produces Tussar silk,is scientifically known as $Antheraea roylei$.
$Bombyx mori$ is the common mulberry silkworm.
$Apis florea$ is a species of honey bee.
Therefore,the correct option is $A$.
94
EasyMCQ
Which of the following pairs represents insects that are beneficial to humans?
A
Honey bee,Lac insect,Cochineal insect
B
Silkworm,Honey bee,Wasp
C
Honey bee,Silkworm,Cockroach
D
None of these

Solution

(A) Beneficial insects are those that provide products of economic value to humans.
$1$. Honey bees ($Apis$ $indica$) provide honey and beeswax.
$2$. Lac insects ($Laccifer$ $lacca$) produce lac,which is used in various industries.
$3$. Cochineal insects ($Dactylopius$ $coccus$) are used to produce carmine dye.
Silkworms are also beneficial,but the combination in option $A$ represents a group of insects specifically recognized for their direct economic products. Cockroaches are considered pests and are not beneficial.
95
EasyMCQ
Which of the following is not a plant product?
A
Hemp
B
Silk
C
Cotton
D
Flax

Solution

(B) Hemp, cotton, and flax are all plant-based fibers derived from the stems or seeds of plants. Silk, on the other hand, is an animal product obtained from the cocoons of the silkworm $(Bombyx \text{ } mori)$. Therefore, silk is not a plant product.
96
EasyMCQ
Which is the richest source of plant protein?
A
Sorghum
B
Soybean
C
Wheat
D
Rice

Solution

(B) Soybean $(Glycine \ max)$ is considered the richest source of plant-based protein. It contains approximately $40\%$ protein and $20\%$ oil. It is a complete protein source because it contains all the essential amino acids required by the human body.
97
MediumMCQ
Read the following statements carefully and select the correct ones:
$(1)$ The wheat variety $Atlas$ $66$ has high protein content.
$(2)$ $SCP$ is an alternative source of protein for human and animal nutrition.
$(3)$ Plants developed through micropropagation are genetically different from the parent plant.
$(4)$ Semi-dwarf rice varieties were derived from $IR-8$ and $Taichung$ $Native-1$.
A
$1, 2, 3$
B
$3, 4, 1$
C
$2, 3, 4$
D
$1, 2, 4$

Solution

(D) Statement $(1)$ is correct: $Atlas$ $66$ is a biofortified wheat variety known for its high protein content.
Statement $(2)$ is correct: $Single$ $Cell$ $Protein$ $(SCP)$ serves as an alternative protein source for human and animal nutrition.
Statement $(3)$ is incorrect: Plants developed through micropropagation are clones of the parent plant and are genetically identical,not different.
Statement $(4)$ is correct: Semi-dwarf rice varieties were indeed developed from $IR-8$ (developed at $IRRI$,Philippines) and $Taichung$ $Native-1$ (from Taiwan).
Therefore,statements $(1), (2),$ and $(4)$ are correct.
98
EasyMCQ
Which three crops contribute the most to global food production?
A
Wheat,Rice,Maize
B
Rice,Maize,Sorghum
C
Wheat,Rice,Sorghum
D
Wheat,Rice,Barley

Solution

(A) The three most important cereal crops that provide the majority of the world's food supply are Wheat,Rice,and Maize. These crops are staple foods for a large portion of the global population and are extensively cultivated worldwide due to their high yield and nutritional value.
99
EasyMCQ
Which is an important cereal crop of the temperate region?
A
Wheat
B
Barley
C
Rice
D
Maize

Solution

(A) Wheat ($Triticum$ $aestivum$) is the most important cereal crop grown in temperate regions worldwide.
It is a staple food for a large portion of the global population.
While barley is also grown in temperate regions,wheat is significantly more important in terms of global production and consumption as a primary cereal crop.
100
EasyMCQ
Which is the most common plant used as green manure in India?
A
Sunflower (Helianthus annuus)
B
Sunn hemp (Crotalaria juncea)
C
Sesame (Sesamum indicum)
D
Pigeon pea (Cajanus cajan)

Solution

(B) Green manure is a type of cover crop grown primarily to add nutrients and organic matter to the soil.
In India, $Crotalaria \text{ } juncea$, commonly known as Sunn hemp, is the most widely used plant for green manuring.
It is a leguminous plant that fixes atmospheric nitrogen in the soil, thereby improving soil fertility.
Therefore, the correct option is $B$.

Strategies for Enhancement in Food Production — Mix Examples- Strategies for Enhancement in Food Production · Frequently Asked Questions

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3How do I generate a question paper from this subtopic?

Use the Vedclass Exam Paper Generator — select the chapter and subtopic, set difficulty, and generate Sets A, B, C, D automatically. First 3 chapters of every subject are free.

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