A pond is –

Which one statement is correct regarding man made ecosystem ?

The largest ecosystem of the world is-

A natural ecosystem-

Which of the following is a man made artificial ecosystem?

A pea-cock eats snakes which eat frogs. Frogs which in turn thrive on leaves of the plants. The peacock is:

Ecosystem is –

Biotic components of an ecosystem include-

What is the annual net primary productivity of whole biosphere?

Which most often limits the primary productivity of the ecosystem ?