Our Environment...

Based on the food chain, pick the odd one out.

What is the harm from the depletion of Earth's ozone layer?

Which of the following limits the number of trophic levels maintained by an ecosystem?

Which best describes the movement of energy and matter through living systems? 

Grass $$\rightarrow$$ Goat $$\rightarrow$$ Tiger $$\rightarrow$$ Vulture
According to the given food chain, which of the following will have the maximum concentration of harmful chemicals in its body due to contamination of pesticides in the soil?

In a food chain, deer is eaten by a lion and deer eats the vegetation. Which one of the following given statements is true?
(P) The lion is a second-order consumer and the deer is the first-order consumer.
(Q) Lion is a predator and deer is the prey.
(R) Lion is a first-order consumer and deer is a second-order consumer.

Waste of water can be minimised by 

The given image depicts which of the following phenomena?

The use of DDT is banned now-a-days because it is

If all green plants of the earth are destroyed