Give one word for the following (a) Farming without the use of chemicals as fertilisers herbicides and pesticides is known as `"_________"` (b) Growing of wheat and groundnut on the same field is called as `"_________"` (C) Planting soyabean 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 `"_________"`
