Depletion of ozone is mainly due to

In the given food chain, suppose the amount of energy at fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk

Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as

Organisms which synthesize carbohydrates from inorganic compounds using radiant energy are called

In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of