Tag: air and water pollution control

Quizzes (7) Questions (151)

Questions Related to air and water pollution control

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

Gloal warming is a serious outcome of:

  1. water pollution

  2. land pollution

  3. industrial pollution

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Global warming is among the most serious outcome of industrial pollution, witnessed on the account of the steady rise of industrial activities. Industries release into the atmosphere a variety of greenhouse gases including carbon dioxide $(CO _2)$ and methane $(CH _4)$. These gases absorb thermal radiation from the sun thereby increasing the general temperature of the earth, leading to global warming.

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

Which chemical substance is a greenhouse gas that scientists link to global climate change?

  1. Nitrogen oxides

  2. Lead

  3. Carbon dioxide

  4. DDT

  5. Nitrates
Reveal answer Fill a bubble to check yourself
A,C Correct answer
Explanation

Nitrous oxide $\displaystyle N _2O$ is a greenhouse gas scientists link to global climate change. Following are the sources of nitrous oxide.
(1) Fertilizer use
(2) Fossil fuel combustion
(3) Biomass burning
(4) Changing land use

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

Which of the following are the source for hydrocarbons as pollutants?

  1. Anaerobic bacterial decomposition of organic matter

  2. Forest fires and trees

  3. Combustion of Fuels

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The following are the source for hydrocarbons as pollutants:
Anaerobic bacterial decomposition of organic matter, forest fires and trees and combustion of fuels. Solvents in industrial operation.
Hence option D is correct.

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

What is the cause of Green house effect?

  1. Infra-red rays

  2. Ultra violet rays

  3. X-rays

  4. Radio waves
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The greenhouse gases absorb more of infrared rays and emits heat and this heat cannit be escaped from the atmosphere-resulting in heating up of the earth surface thereby resulting in global warming and hence greenhouse effect.

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

The gas that is not considered as a 'green house gas' is:

  1. $CO _2$
  2. $CH _4$
  3. $O _2$
  4. $O _3$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The gases in the atmosphere that absorb radiation are known as "greenhouse gases" (sometimes abbreviated as GHG) because they are largely responsible for the greenhouse effect. The most significant greenhouse gases are water vapor $(H _2O)$, carbon dioxide $(CO _2)$, methane $(CH _4)$  and nitrous oxide $(N _2O)$ and ozone $(O _3)$. While oxygen $(O _2)$ is the second most abundant gas in our atmosphere, $O _2$ does not absorb thermal infrared radiation to cause green house effect.


Hence, the correct option is C.

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

The two gases making the highest relative contribution to the greenhouse gases are:

  1. $CO _{2}$ and $CH _{4}$
  2. $CH _{4}$ and $N _{2}O$
  3. $CFC{s}$ and $N _{2}O$
  4. $CO _{2}$ and $N _{2}O$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Highest contribution to green house gases are $CO _2 $  $60$% and $CH _4$  $20$% which absorbs more of the infrared rays and UV rays and causes global warming.  

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

Identify the non-Green House Gas (GHG) from the following

  1. Methane

  2. Nitrous oxide

  3. Sulphur hexafluoride

  4. Carbon monoxide
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Carbon monoxide is a colorless, odorless, and tasteless gas that is slightly less dense than air. Carbon Monoxide and other reactive gases Carbon monoxide (CO) is not considered a direct greenhouse gas, because it does not absorb terrestrial thermal IR energy strongly enough.