1.
The word ecosystem was coined by:
2.
Ecosystem has two components:
3.
Which one of the following terms does not reflect the idea of ecosystem:
4.
Competition for water, minerals, light and space is most severe between two:
5.
Ecosystem is:
6.
Each human couple should produce only two children which help in:
7.
A habitat of long severe winters and growing season limited to a few months of summer constitutes:
8.
An ecosystem is:
9.
An ecosystem may be defined as:
10.
In natural ecosystem, decomposers include:
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