Environment  Bio Diversity

81. What are coarse particles (PM10) and how they are made ?
A. Smoke, dirt and dust from factories, farming and roads are called coarse particles. They are made from crushing and grinding of rocks and soils.
B. Toxic organic compound and heavy metals are called coarse particles. They are made from driving automobiles, burning plants and smelting and processing metals.
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A only B only Both A and B Neither A nor B

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82. Who developed Gaia Theory and when?
A. It is a theory compelling new way of understanding life in our planet.
B. This theory asserts that living organisms and their inorganic surroundings have evolved together as a single living system that greatly affects the chemistry and conditions of earths surface
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A only B only Both A and B Neither A nor B

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83. What is the role of carbon cycle?

Carbon is exchanged or cycled among earths oceans, atmosphere, ecosystems and geosphere. All living organisms are built of carbon compounds. It is the fundamental building block of life and an important component of many chemical processes. All the above.

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84. Which one of the following is True about Kyoto Protocol?

It is an International treaty, which extends the 1992 United Nations framework convention on climate change that commits state parties to reduce greenhouse gases emissions. One of the most successful treaties which having 196 parties. Acts as a framework for International efforts to protect ozone layer International treaty designed to reduce the movements of hazardous waste between nations, especially from developed to less developed countries. This treaty is signed to ensure International trade in specimens of wild animals and plants does not threaten the survival of species in wild

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85. Which of the following are responsible for bringing Dynamic Change in Surface of earth?
A. Electromagnetic radiation
B. Geothermal energy
C. Gravitational force
D. Plate movements
E. Rotation of earth
F. Revolution of earth
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A,B, and C only B,D,F, and E only A,B,D, and E only A,B,C,D,E,F

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86. Thunderstorm, thunder in skies is produced by?
A. Meeting of cumulonimbus clouds in sky
B. Violent upward movement of air and water particles
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A only B only Both A and B Neither A nor B

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87. In which region where the Climate is Extreme rainfall are scanty people used to be Nomadic Herders?

Africa South Continent Central Asian Steppe Both A and B

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88. Mixed Farming is referred as?

A System of farming which involves the growing of crops as well as the raising of livestock A farming where two or more crops are grown simultaneously. Both A and B None of the above

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89. What is true according to Wetland in India?
A. Countrys total geographical area under the category of wetland is recorded more in Gujarat as compared to other states
B. Total geographical coastal wetland covers about 41,40,116 hectare where inland wetland covers about 1,05,64,899 hectare.
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A only B only Both A and B Neither A nor B

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90. Which of the following is true according to Influence of Ocean Currents?

Rotation of earth Air pressure and wind Density of ocean water All the above

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