1.
Environment consists of
2.
The reason for excessive generation of waste is
3.
What is the cause of the soil pollution?
4.
What would happen to the earth in the absence of ants?
5.
Which one of these does not refer to the direct use of forest products?
6.
In which of these following can we find brackish water ecosystem?
7.
A biodegradable waste is
8.
Which one is recyclable waste?
10.
Carcinogenic chemicals produced during recycling of plastics and polythene are
11.
What is the correct order of the 3R principle?
12.
Combustible material can be hygienically disposed off through
13.
City garbage can be used to produce
14.
Which is abiotic component of ecosystem?
16.
In every food chain green plants are
17.
Which one is present in maximum number in an ecosystem?
18.
An artificial ecosystem is
19.
Ozone shield protects us from
20.
The first conference of ozone layer was held in
21.
Organization involved in formulating programmes for protecting environment is
22.
Which chemical has been replaced recently?
23.
Which of these gases is not permitted to be released by the prevention and control of pollution act by government?
24.
What factors are considered as the causes of eutrophication?
25.
Who coined the term ecosystem?
