Draw a line diagram to show flow of solar energy in ecosystem.

Will the impact of removing all the organisms is a trophic level be different for different trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem?

Why is depletion of ozone layer a cause of concern?

In a certain study conducted on occurrence of DDT along food chains in an ecosystem, the concentration of DDT in grass was found to be 0.5 ppm (parts per million), in sheep it was 2ppm and in man it was 10 ppm. Why was the concentration of DDT maximum in case of man?

Construct a food web by connecting three food chains.