Biology
Assertion (A): The process of recovery of threads from the killed larvae of silkworm is called as reeling.
Reason (R): Threads are recovered from the larval stages of silkworm because this stage is the most active and productive stage in its life-cycle.
- Both A and R are true.
- Both A and R are false.
- A is true and R is false.
- A is false and R is true.
Food Production
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Answer
A is true and R is false.
Explanation — Threads are recovered from the cocoon, which is spun by the larva. The cocoon is harvested, and silk threads are extracted from it, not directly from the larva.
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Fill in the blanks:
(a) Cattle feed made from cereals and wheat is called ……………
(b) Rearing of birds for eggs and meat is called ……………
(c) Animal food is rich in ……………
(d) …………… is an example of root crop.
(e) Cereals are rich in ……………
(f) …………… are chemical substances used to destroy pests.
(g) …………… ia an example of a tuber crop.
(h) Pig farming is termed as ……………