What the following things provide us?
Maize, green gram, ground nut and niger.

2

(a)

What do we get from cereals, pulses, fruits and vegetables?

2

(a)

Define hydridisation. What are its types?

2

(a)

What are the desirable agronomic characteristics for crop improvements?

2

(a)

List three scientific approaches that are adopted to obtain high yields from our farms.

2

(a)

What are weeds? How do they harm crop plants?

2

(a)

How do they prevent growth of crop?

2

(a)

Mention two advantages of animal husbandry.

2

(a)

What are the three indigenous breeds of dairy cows?

2

(a)

Give two examples of Exotic breeds of cows which are selected for long lactation period.

2

(a)

Discuss the implications of the following statement:
"It is interesting to note that poultry is India's most efficient converter of low fibre foodstuff (which is unfit for human consumption) into highly nutritious animal protein food."

2

(a)

What are the types of fisheries?

2

(a)

List culture fisheries in sea water.

2

(a)

What is Hypophysation? What are its advantages?

2

(a)

What are the uses of honey?

2

(a)