How do Sunhemp or guar help in crop production management? How is it better than fertilizers?

The government was setting up a school in the village. In the panchayat,Vinod,who had just completed his class $X$,suggested that the children should be taught about different agricultural practices and the use of modern technology in them. The Sarpanch liked the idea and arranged for the same.
$(a)$ Children were taught that wheat cannot be grown in the kharif season. Why?
$(b)$ Mention the desirable agronomic character for cereals.
$(c)$ Do you support the suggestion to the Sarpanch? Mention any two values for which Vinod is worth admiration.

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.

The oil-yielding plant among the following is:

Jessica saw her mother rotating a milk churner in a container of milk. She was surprised and asked her mother why she was doing that. Her mother smiled and explained that she was separating cream from milk,which would be used in various dishes.
$(a)$ What kind of qualities are shown by Jessica's mother?
$(b)$ How is cream easily separated from milk by a milk churner?

Weeds affect the crop plants by: