$(a)$ Name one indigenous and one exotic breed of domestic fowl.
$(b)$ What are the two main products obtained from raising domestic fowl?
$(c)$ Name two vitamins that should be included in high amount in poultry feed.

Differentiate between layers and broilers.

The housing, nutritional and environmental requirements of broilers are somewhat different from those of egg layers.

What are those crops called which are grown in the winter season?

Unpredictable monsoon,droughts,and low rainfall are adversely affecting Indian agriculture.
$(a)$ Mention any two initiatives that have been adopted to increase the availability of water for agricultural purposes.
$(b)$ State two advantages of making check dams.
$(c)$ Briefly describe the canal and river lift systems of irrigation.

Weeds affect the crop plants by: