Why is excess use of fertilizers detrimental for environment?

List out some useful traits in improved crop?

Why is organic matter important for crop production?

Give one word for the following

(a) Farming without the use of chemicals as fertilizers, herbicides and pesticides is known as_______

(b) Growing of wheat and groundnut on the same field is called as ________

(c) Planting soybean and maize in alternate rows in the same field is called as _______.

(d) Growing different crops on a piece of land in pre-planned succession is known as_______.

(e) Xanthium and Parthenium are commonly known as_________.

(f) Causal organism of any disease is called as ________.

Match the following A and B