Question

The reason that the chemical/synthetic fertilisers should be replaced by biofertilisers is that the former:

• A. Are source of environmental pollution
• B. Are expensive
• C. Exhaust the valuable energy resources for their manufacture
• D. All of these

Answer 1

Answer: (D)

All of these

Chemical fertilisers are being used in increasing amounts to increase output in high yielding varieties of crop plants. However, chemical fertilisers cause pollution of water bodies as well as groundwater, besides getting stored in crop plants. They are expensive and also require a lot of energy resources in their manufacture.

So, the correct answer is (D).