Group the following crops and tabulate them as energy-yielding,protein-yielding,oil-yielding,and fodder crops: Wheat,rice,berseem,maize,gram,oat,pigeon pea,sudan grass,lentil,soybean,groundnut,castor,and mustard.

Poultry fowl are susceptible to the following pathogens:

What is mariculture and aquaculture?

Paras visited a poultry farm with his younger brother,who was perturbed to see that the caretakers were feeding them with grains left in the harvested field which humans cannot consume. Paras explained to him that it would not harm them.
$(i)$ List the two major purposes of poultry farming.
$(ii)$ Name an indigenous and an exotic poultry breed.
$(iii)$ Why was Paras' brother perturbed?

Dalton was the first scientist to use symbols for elements. Chemical symbols act as a vocabulary of chemical language. Chemical symbols are used to describe chemical changes with clarity and precision. Chemical symbols help in identifying specific elements. Chemical symbols also represent an atom of a particular element. Chemical symbols also signify the atomic mass of an element.
$(a)$ How do symbols help in identifying specific elements?
$(b)$ How do we use symbols in daily life for our convenience?
$(c)$ What values do you find in using symbols?

Neem and turmeric powders are often used in grain storage.
$(i)$ What are they called?
$(ii)$ What is the purpose of using neem and turmeric?
$(iii)$ What are herbicides?