Question

Answer these questions

9 points ☺

Answer 1

1)naphatelene acetic acid
2)preparation of soil
3)locusts,rats
4) pesticides : chemicals sprayed on crops to kill pests is known as pesticides. spraying is done manually or by a small aircrafts ...
weedicides:these are chemicals which kill the weeds but do not harm the crops .these are sprayed on the field.

hope it helps

Answer 2

Hi friend,

1- * 2 4 Dichlorophenoxy acetic acid( 2,4-D ) 
* Naphathelene acetic acid (NAA)

2. preparing the soil is the first step of cultivation of crop.

3. aphids and cockroaches damaged crops

4. pesticide is to use pests and wedicide is to remove weeds from the crop.

hope it helps......