11.
The typical composition of management of solid wastes do not depend on

12.
An organochlorine insecticide is

13.
Which is not a greenhouse gas

14.
With respect to energy, earth is regarded as

15.
What is the ground water reserve of India?

16.
Match the terms in Column I with suitable terms in Column II
Column I Column II
a. The rate at which organic molecules are formed in green plant 1. Secondary productivity
b. The ultraviolet rays are absorbed 2. Gross primary productivity
c. The rate of increase in the biomass of heterotrophs 3. Ozone layer
d. Ten percent law 4. Cycle of matter
e. The exchange of materials between the living of non-living world 5. Lindemann's law

17.
Total water in hydrosphere is

18.
Sampling in which elements are grouped together because they share certain features

19.
Guano deposits of birds consists of

20.
The source of methane pollution is

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