Question

5. Reena studied that there are some material which are beneficial for soil and some are harmful to soil. Which materials
are harmful to soil? a) different types of weeds b) chemical c) insecticides d) all of above​

Answer 1

Answer:

d. all of these

Explanation:

weeds are unwanted plants that take the fertility of soil

chemical make the soil polluted

insecticide take away the fertility of soil and make it polluted

Answer 2

• Insectides would kill the insects but also the beneficial ones such as bees

This would affect in case of plants

• Chemicals may affect the crops and other living creatures growing in the soil

• herbicides are used to remove weeds as they take up too much from ground causing overly wet soil

So, a) must be the answer