Question

A student of biology wouId suggest which one of the following agricultural practices to control biomagnification of toxic elements in the ecosystem?

Options

• Crop rotation and use of NPK fertilizers.

• Mixed cropping and use of fertilizers in large amount.

• Organic farming and use of biopesticides and biofertilizers.

• Jhum cultivation and use of chemical fertilizers and bio pesticides.

Answer 1

Organic farming and use of biopesticides and biofertilizers.

Explanation:

The buildup of hazardous compounds in living organisms with increasing concentration in the food chain is known as bio amplification. To reduce the use of chemical fertilisers, organic farming should be promoted, as should the use of bio fertilisers and bio insecticides.