Tag: air around us

Quizzes (29) Questions (28)

Questions Related to air around us

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

Match column I with column II and pick the correct option from the codes given below:

Column I Column II
p. Peroxy acetyl nitrate 1. Waste incineration
q. Polycyclic aromatic hydrocarbons 2. Global warming
r. Dioxins 3. Photochemical smog
s. Indigo 4. Carcinogens
t. IR active molecules 5. Vat dye

  1. p-3, q-4, r-1, s-5, t-2

  2. p-1, q-2, r-3, s-4, t-5

  3. p-3, q-5, r-1, s-2, t-4

  4. p-5, q-3, r-1, s-2, t-4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Peroxy acetyl nitrate is a component of photochemical smog, PAHs are carcinogens, Dioxins come from waste incineration, Indigo is a vat dye, and IR active molecules contribute to global warming.

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

Which among the given is not a natural source of air pollution?

  1. Automobile exhausts

  2. Vegetation decay

  3. Forest fire

  4. Volcanic eruptions
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The automobile exhaustion is not a natural source of air pollution, it is man-made air pollution.
It is emitted as a result of the combustion of fuels such as natural gas, gasoline, petrol,bio-diesel etc. It discharges a large amount of $CO _2$(carbon dioxide), NO, CO, ozone etc.

Hence, the correct option is A.

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry

The component of air essential for growth of plants and animals is ________.

  1. oxygen

  2. nitrogen

  3. hydrogen

  4. argon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The component of air which is essential for growth of plants and animals is nitrogen. Atmospheric nitrogen is converted by bacteria through nitrogen fixation to nitrate and nitrites, which is consumed by plants. Animals also need nitrogen, as all amino acids which are the building blocks of proteins have basic element of nitrogen.