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Heat Zones of the Earth

A greenhouse ...

Question

A greenhouse is a structure that traps the sun’s heat and does not allow it to escape. Then how will carbon dioxide enter that structure for the plants to do photosynthesis?

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Solution

A greenhouse should have vents for fresh air to get in it.

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Q. Select the correct statements about greenhouse gases:

A. Carbon dioxide is the only gas in the atmosphere which causes global warming.
B. The greenhouse gases trap heat and do not allow heat to escape into outer space.
C. Water vapours do not contribute to the greenhouse effect.
D. The presence of excessive greenhouse gases in the atmosphere is responsible for global warming.

Q. Read the following statements and select the correct statements about greenhouse gases:
a) Carbon dioxide is the only gas in the atmosphere which causes global warming.
b) The greenhouse gases trap heat and do not allow heat to escape into outer space.
c) Water vapors do not contribute to greenhouse effect.
d) The presence of excessive greenhouse gases in the atmosphere is responsible for global warming.

A ___ igloo traps inside the heat so that the warmth inside the structure does not escape in cold regions.

Q. Carbon dioxide in air is used by plants to
(a) breathe.
(b) make food.
(c) remove waste.
(d) trap energy of sun for photosynthesis.

Q. Carbon dioxide is a greenhouse gas because it has an ability to trap heat in the atmosphere.

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GEOGRAPHY

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Heat Zones of the Earth

Standard VIII Geography

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