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7th S1 Quiz #1

Last updated about 5 years ago

5 questions

1

1

1

1

1

Question 1

1.

The Earth is an integrated system that consists of rock, air, _________ , and living things that all interact with each other.

land

water

plants

animals

Question 2

2.

The main gas in the atmosphere is:

oxygen

nitrogen

methane

carbon dioxide

Question 3

3.

As you go up in the atmosphere, altitude _ and air pressure ______.

decreases, increases

increases, decreases

remains the same, decreases

remains the same, increases

Question 4

4.

Mountain climbers will need to carry and use their oxygen tanks as they reach the top of a mountain because _____________________.

the atmosphere becomes thicker (more dense) at higher elevations.

the atmosphere becomes thinner (less dense) at higher elevations.

the atmosphere has more water vapor at higher elevations.

the atmosphere has more pollutants at higher elevations.

Question 5

5.

Which of the following explains how convection currents work?

Warm air rises, while cold air sinks

Cold and warm air meet

Warm air stays at the surface, cold air rises

Cold air rises, while warm air sinks