Class 12BiologyStrategies for Enhancement in Food ProductionMix Examples- Strategies for Enhancement in Food Production
MediumWhat is the primary objective of crop rotation?
- ATo increase soil fertility
- BTo decrease soil fertility
- CTo prevent soil erosion
- DTo prevent water erosion
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Similar Questions
The Indian Agricultural Research Institute $(IARI)$ is located at ........
Easy
View SolutionMatch the organisms in Column $I$ with their economic importance in Column $II$.Column $I$ (Organism) Column $II$ (Economic importance) $i$. $Trachardia$ $lacca$ $a$. Used to produce oils,soaps and isinglass $ii$. $Bombyx$ $mori$ $b$. Helps in pollination of crops $iii$. $Cirrhina$ $mrigala$ $c$. Resin-like substance produced by dermal glands $iv$. $Apis$ $mellifera$ $d$. Best quality of mulberry silk is produced
| Column $I$ (Organism) | Column $II$ (Economic importance) |
| $i$. $Trachardia$ $lacca$ | $a$. Used to produce oils,soaps and isinglass |
| $ii$. $Bombyx$ $mori$ | $b$. Helps in pollination of crops |
| $iii$. $Cirrhina$ $mrigala$ | $c$. Resin-like substance produced by dermal glands |
| $iv$. $Apis$ $mellifera$ | $d$. Best quality of mulberry silk is produced |
Which of the following can drastically affect the egg and chicken consumption in a country?
Easy
View SolutionOne of the basic elements considered in the Green Revolution is . . . . . . .
Which of the following is a pheromone?
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