Q46 of 163 Page 242

The flow of energy in an ecosystem is always:

The energy enters the plants from sun, during the making of food. This energy is passed from one trophic level to another in food chain.

More from this chapter

All 163 →
44

The depletion of ozone layer in the upper atmosphere is mainly due to the emission of:

 45

In an ecosystem, the ten per cent energy available for transfer from one trophic level to the next is in the form of:

 47

The excessive exposure of humans to ultraviolet rays results in:

(i) Damage to immune system


(ii) Damage to lungs


(iii) Skin cancer


(iv) Peptic ulcers

 48

Which of the following gets the minimum energy through the food chain in an ecosystem?