Tag: evs - i

Questions Related to evs - i

Biosphere is

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. Global ecosystem

  2. Global community

  3. Living organism

  4. Count of organism on earth

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Correct Option: A

Biosphere reserve programme started in India ___________.

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. 1986

  2. 1984

  3. 1982

  4. 1988

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Correct Option: A
Explanation:

Man and biosphere programme is an international biological programme of UNESCO (United Nations Educational Scientific and Cultural Organization) which was started in 1971 but was introduced in India in 1986.

So, the correct answer is '1986'

When first formed the early earth was very hot. Its surface temperature was :

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. $ 1000^o-1200^o C $

  2. $ 3500^o-4000^o C $

  3. $ 5000^o-6000^o C $

  4. $ 8000^o-10000^o C $

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Correct Option: C

Ozone makes the stratosphere :

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. Cooler by $17^o C $

  2. Warmer by $17^o C $

  3. Warmer by $53^o C $

  4. Cooler by $50^o C $

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Correct Option: C

Earth is differentiated into three layers. The outer layer is :

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. Lithosphere

  2. Asthenosphere

  3. Mantle

  4. Crust

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Correct Option: D

The number of terrestrial planets is :

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. Four

  2. Three

  3. Two

  4. One

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Correct Option: A

Which one is maximum is sun?

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. Hydrogen

  2. Helium

  3. Carbon

  4. Oxygen

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Correct Option: A

Primary atmosphere was :

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. Reducing

  2. Oxidising

  3. Rich in ozone

  4. Rich in $NO _2$

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Correct Option: A

Which one disappeared from earlier atmosphere during its conversion to prime atmosphere?

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. Atomic state of gases

  2. Oxygen

  3. Ammonia

  4. Both A and B

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Correct Option: D

Which organisms changed earth's atmosphere from reducing to oxidising?

evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

  1. Chemoautotrophs

  2. Bacterial photoautotrophs

  3. Blue-green algae/ oxygenic photoautotrophs

  4. Chemoheterotrophs

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Correct Option: C