We need to plant more trees because trees absorb carbon dioxide from the air, and release oxygen.

True

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False

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Solution

The correct option is A True
Plants absorb carbon dioxide and release oxygen during their process of making food. As animals need oxygen to breathe, we need plants and trees as oxygen producers.
Hence, we should plant more and more trees.

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Q. We need to plant more trees because trees absorb from the air, and release .

Eucalyptus trees are planted all along sewage ponds because these trees absorb the surplus waste water rapidly and release pure water vapour into the atmosphere.

Why plants don't absorb nitrogen from the air directly like carbon dioxide and oxygen

Q. State whether the following statements are true or false.
(a) Air consists of a single substance.
(b) When water is poured into a glass, air is pushed out of the glass.
(c) Trees need oxygen for photosynthesis.
(d) When we exhale, we give out the carbon dioxide produced in the body.
(e) The amount of water vapour in the air is always the same.
(f) Nitrogen is required by plants to make proteins.
(g) Aircrafts fly in the ionosphere as there is less friction in this zone.
(h) One per cent of air contains carbon dioxide, argon, helium, argon and krypton-all of which are inert gases.
(i) LPG and CNG burn using oxygen gas and release carbon dioxide gas.
(j) Nitrogen in the air also helps in burning.

Q. Planting more trees increases air pollution.

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We need to plant more trees because trees absorb carbon dioxide from the air, and release oxygen.

The correct option is A TruePlants absorb carbon dioxide and release oxygen during their process of making food. As animals need oxygen to breathe, we need plants and trees as oxygen producers. Hence, we should plant more and more trees.

The correct option is A True
Plants absorb carbon dioxide and release oxygen during their process of making food. As animals need oxygen to breathe, we need plants and trees as oxygen producers.
Hence, we should plant more and more trees.