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Environment and Ecosystems

Authored by Israel Afolayan

Biology

7th Grade

Environment and Ecosystems
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10 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

What is the main gas in the air we breathe?

Oxygen

Nitrogen

Carbon dioxide

Helium

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which gas do plants use to make food?

Oxygen

Nitrogen

Carbon dioxide

Argon

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which gas is needed for respiration?

Oxygen

Carbon dioxide

Methane

Neon

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

What happens if there are fewer trees on Earth?

More oxygen

Less oxygen and more carbon dioxide

More rain

Cleaner air

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which of the following adds harmful gases to the air?

Planting trees

Burning fossil fuels

Collecting rainwater

Recycling

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

What process changes water from liquid to vapour?

Evaporation

Condensation

Precipitation

Runoff

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

What happens during condensation?

Water changes to ice

Water vapour cools and becomes liquid

Plants lose water

Water flows into rivers

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