EASY
6th CBSE
IMPORTANT
Earn 100

How does air get polluted?

Important Questions on The Importance of air

EASY
6th CBSE
IMPORTANT
How is carbon dioxide added into the atmosphere?
EASY
6th CBSE
IMPORTANT
Explain how respiration and photosynthesis maintain the amount of oxygen and carbon dioxide in the air.
MEDIUM
6th CBSE
IMPORTANT
Describe an experiment to show air contains water vapour.
EASY
6th CBSE
IMPORTANT

Read the given passage and answer the questions.

Respiration by plants and animals and burning of things are the two processes that add carbon dioxide into the air. Burning of fuels such as petrol, diesel and kerosene is a human activity and has lead to tremendous increase in carbon dioxide in the atmosphere. Increase in carbon dioxide in the air leads to increase in the Earth's average temperature and this has ill-effects on all forms of life.

Which human activity is adding huge amounts of carbon dioxide in the air?

EASY
6th CBSE
IMPORTANT

Read the given passage and answer the questions.

Respiration by plants and animals and burning of things are the two processes that add carbon dioxide into the air. Burning of fuels such as petrol, diesel and kerosene is a human activity and has lead to tremendous increase in carbon dioxide in the atmosphere. Increase in carbon dioxide in the air leads to increase in the Earth's average temperature and this has ill-effects on all forms of life.

What effect can burning of fuels such as petrol and diesel have on the Earth's atmosphere?

EASY
6th CBSE
IMPORTANT

Read the given passage and answer the questions.

Respiration by plants and animals and burning of things are the two processes that add carbon dioxide into the air. Burning of fuels such as petrol, diesel and kerosene is a human activity and has lead to tremendous increase in carbon dioxide in the atmosphere. Increase in carbon dioxide in the air leads to increase in the Earth's average temperature and this has ill-effects on all forms of life.

Why does increase in carbon dioxide levels in the atmosphere have ill-effects on life on the Earth?

EASY
6th CBSE
IMPORTANT

Read the following passage and answer the questions.

Ali noticed that thick, black smoke was coming out from his school bus. He met the transport in-charge and convinced him to get the bus checked for harmful gases emission.

What is Ali's concern?