Tag: air and water pollution control

Questions Related to air and water pollution control

What causes the global warming?

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

  1. Burning of fossil fuels

  2. Deforestation

  3. Industrialization

  4. All of the above

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Correct Option: D
Explanation:

Global warming is the slow increase in the average temperature of the earth’s atmosphere because an increased amount of the energy 
All the given activities increases the amount of green house gases in the atmosphere and hence global warming.

Which of the following gasses contribute to greenhouse effect?

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

  1. $CO _2$

  2. $CH _4$

  3. $CFC$s

  4. All of the above

Show answer
Correct Option: D
Explanation:

Green house causes the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are carbon dioxide, methane, nitrous oxide and ozone.


Chlorofluorocarbons (CFCs) are also a greenhouse gases.

So, the correct option is $D$

Argon is a greenhouse gas. 

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: B
Explanation:

Argon is not a greenhouse gas because it is mostly transparent to the wavelengths of light that is responsible for trapping heat.

Which of the following is a greenhouse gas?

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

  1. Nitrogen

  2. Oxygen

  3. Ozone

  4. Helium

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Correct Option: C
Explanation:

A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone. 

_________ is a gas in an atmosphere that absorbs and emits radiation within the thermal infra-red range.

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

  1. Global gas

  2. Greenhouse gas

  3. Green gas

  4. Noble gas

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Correct Option: B
Explanation:

A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. 

Black carbon, a potential global warming gas causes__________.

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

  1. human morbidity

  2. premature mortality

  3. both a and b

  4. asthma

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Correct Option: C
Explanation:

Black carbon consists of pure carbon in several linked forms. It is formed through the incomplete combustion of fossil fuels, biofuel, and biomass, and is emitted in both anthropogenic and naturally occurring soot. Black carbon causes human morbidity and premature mortality.

The greenhouse effect is useful because:

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

  1. it reduces water pollution

  2. it increases normal temperature of earth

  3. keeps the temperatures on our planet mild and suitable for living things

  4. reduces greenhouse gases

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Correct Option: C
Explanation:

The greenhouse effect is useful because trapping some energy keeps the temperatures on our planet mild and suitable for living things. Without its atmosphere and the greenhouse effect, the average temperature at the surface of the Earth would have been very low.

Greenhouse gases cause:

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

  1. ocean acidification

  2. ozone depletion

  3. smog pollution

  4. all of above

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Correct Option: D
Explanation:

Increases in the different greenhouse gases have other effects apart from global warming, including ocean acidification (by acid rain), smog pollution (contaminated particles in air) and ozone depletion as well as changes to plant growth and nutrition levels.

Which of the following is next to carbon dioxide for its contribution to global warming?

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

  1. $CFC$s

  2. $CO$

  3. Black carbon

  4. Ozone

Show answer
Correct Option: C
Explanation:

Black carbon is second only to carbon dioxide for its contribution to global warming. Chemically, black carbon or BC is a component of fine particulate matter. Black carbon consists of pure carbon in several linked forms. It is formed through the incomplete combustion of fossil fuels, biofuel, and biomass, and is emitted in both anthropogenic and naturally occurring soot.

Which of the following is a factor that affect the degree to which any greenhouse gas will influence global warming?

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

  1. Its abundance in the atmosphere.

  2. How long it stays in the atmosphere.

  3. Its global-warming potential.

  4. All of above.

Show answer
Correct Option: D
Explanation:

By increasing the heat in the atmosphere, greenhouse gases are responsible for the greenhouse effect, which ultimately leads to global warming. Three factors affect the degree to which any greenhouse gas will influence global warming: its abundance in the atmosphere, how long it stays in the atmosphere and Its global-warming potential.