Question

Pls answer Q 2 and Q 3

Answer 1

I know only q3 :

1) sickle: it is used while harvesting the crops.

2)It is used to pluck the crops which are ready for harvesting.

3) it is a machine used to separate crops and it's waste ( skin of crop) separating machine.

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Answer 2

firstly

always be attentive while growing crops

secondly

we should always water them in frequency