Pyramid of energy in a forest ecosystem is</h2></div>

Why is pyramid of energy never inverted in any ecosystem?</h2></div>

Reservior of sulphur is</h2></div>

Which of the following is not a group of man-made ecosystems ? </h2></div>

The reservoir pool for gaseous cycles of matter is<br> </h2></div>

Which one of the following represents a pyramid of biomass?

Highest annual net primary productivity is of<span><br> </span></h2></div>

<span>In ecological succession,</span></h2></div>