Environmental Issues MCQ Questions & Answers in Botany

141. Which important green house gas other than methane is being produced from the agricultural fields?

A Sulphur dioxide

B Ammonia

C Nitrous oxide

D Arsine

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142. Most successful parasites are those which do not

A Grow free

B Kill their host

C Reproduce sexually

D Survive in soil

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143. Temperature variation is Pacific ocean in present time is called

A Cyclone effect

B Alninoeffect

C Green house effect

D Gaudikov's effect

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144. In submerged hydrophyte the functional stomata are found

A On upper surface of leaf

B On lower surface of leaf

C On both surface of leaf

D No where

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145. Bamboo plant is growing in a far forest then what will be the trophic level of it

A First trophic level (T1)

B Second trophic level (T2)

C Third trophic level (T3)

D Fourth trophic level (T4)

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146. Which of the following is secondary pollutant

A PAN

B CO

C NO₂

D SO₂

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147. Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for:

A making plastic sacks

B use as a fertiliser

C construction of roads

D making tubes and pipes

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148. It is said that Tajmahal may be destroyed due to

A Flood in Yamuna river

B Air pollutants released from oil refinery of Mathura

C Decomposition of marble as a result of high temperature

D All of the above

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149. The importance of ecosystem is

A Flow of energy

B Cycling of materials

C A and B both

D None of the above

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150. The addition of any substance to water which leads to change in its physical and chemical characteristic it is defined as water pollution. It result in

A Decrease turibidity

B Increase oxygenation

C Increase photosynthesis

D Increase turbidity dexoygenation

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141. Which important green house gas other than methane is being produced from the agricultural fields?

142. Most successful parasites are those which do not

143. Temperature variation is Pacific ocean in present time is called

144. In submerged hydrophyte the functional stomata are found

145. Bamboo plant is growing in a far forest then what will be the trophic level of it

146. Which of the following is secondary pollutant

147. Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for:

148. It is said that Tajmahal may be destroyed due to

149. The importance of ecosystem is

150. The addition of any substance to water which leads to change in its physical and chemical characteristic it is defined as water pollution. It result in

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