Tag: environmental impact: global warming

Questions Related to environmental impact: global warming

On warming formic acid with ammoniacal silver nitrate, the product formed is 

chemistry air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. silver oxide

  2. metallic silver

  3. formaldehyde

  4. silver formate

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Correct Option: B

Greenhouse effect keeps the earth surface:

chemistry air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. cold at night

  2. dusty and cold

  3. warm at night

  4. moist

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Correct Option: C
Explanation:

Due to greenhouse effect, the sunlight that Earth gets in daytime is trapped inside the Earth's atmosphere and in night the same energy keeps the Earth's surface warm.

Carbon dioxide and methane are the two major components of greenhouse.

chemistry air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. True

  2. False

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Correct Option: A
Explanation:

$CO _2, CH _4, N _2O, CFCs$ and $CO$ are the greenhouse gases. They are good at trapping heat and led to the melting of glaciers.

The main reasons for deforestation are:

biology air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. rapid increase in the population of human beings and their livestock

  2. urbanization and human settlements

  3. cutting down of trees for obtaining fuel

  4. All of the above

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Correct Option: D
Explanation:

The main reasons for deforestation are-rapid increase in the population of human beings and their livestock, urbanization and human settlements, cutting down of trees for obtaining fuel.

What are the advantages of chlorofluorocarbons? 

chemistry air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. Excellent refrigerants

  2. Very good propellants

  3. Useful in firefighting

  4. All of the above

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Correct Option: D
Explanation:

The advantages of chlorofluorocarbons (CFCs) are given below: 

1. Excellent refrigerants: low boiling point, uncreative. 
2. Very good propellants: low toxicity
3. Useful in firefighting

The radiations from the sun is trapped by the earth's atmosphere. This effect is called :

biology air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. green house effect

  2. nursery effect

  3. trapping effect

  4. None of the above

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Correct Option: A

Earth's greenhouse effect causes:

biology air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. warmer surface temperatures

  2. cooler surface temperature

  3. there is no change in surface temperature

  4. None of these

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Correct Option: A
Explanation:

Earth's greenhouse effect causes warmer surface temperature.

The average temperature of the earth's atmosphere is gradually increasing. This is due to:

biology air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. global warming

  2. global housing

  3. sun 

  4. none of the above

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Correct Option: A
Explanation:

The average temperature of the earth's atmosphere is gradually increasing. This is due to global warming.

Which protocol is agreement of global warming concern?

biology air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. Kroto

  2. Kyoto

  3. Kramer

  4. Krato

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Correct Option: B

The Kyoto Protocol is protocol for :

chemistry air and water pollution control environmental impact: global warming green house effect geobiochemical cycle

  1. agreement to reduce the emission of greenhouse gases

  2. disagreement to reduce the emission of greenhouse gases

  3. agreement to increase the emission of greenhouse gases

  4. agreement to reduce the emission of greenhouse liquid

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Correct Option: A