111. |
Safe drinking water is also called
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Answer:
Option (b) |
112. |
Soot particles come in air by
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Answer:
Option (d) |
113. |
The study of interrelationship between livng organisms and their physical and biological environment is called
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Answer:
Option (c) |
114. |
Environmental pollution is due to
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Answer:
Option (d) |
115. |
The biggest pollutant receptor or sink of earth is
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Answer:
Option (c) |
116. |
A zone containing of land , water and air which support life on earth is:
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Answer:
Option (a) |
117. |
Which of the following is not a layer of atmosphere?
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Answer:
Option (d) |
118. |
Short term properties of the atmos phere at a given place and time is referred as:
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Answer:
Option (d) |
119. |
The component of the environment which is of most importance for study of Environment:
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Answer:
Option (c) |
120. |
Which is not true?
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Answer:
Option (b) |