Question 1

Gases flow and swirl in the

Accepted Answer

troposphere

Answer

thermosphere

Answer

stratosphere

Answer

exosphere

Question 2

Which statement is NOT true?

Accepted Answer

Liquid water exists only on Earth's surface.

Answer

Most water on Earth is found in the oceans.

Answer

About 3% of water on Earth is freshwater.

Answer

About 97% of Earth's water is saltwater.

Question 3

The layer where weather occurs

Accepted Answer

troposphere

Answer

mesosphere

Answer

exosphere

Answer

stratosphere

Question 4

The most abundant gases in the air are

Accepted Answer

oxygen and nitrogen

Answer

argon and ozone

Answer

carbon dioxide and methane

Answer

helium and water vapor

Question 5

The layer that protects the biosphere

Accepted Answer

stratosphere

Answer

thermosphere

Answer

troposphere

Answer

exosphere

Question 6

The highest layer in which temperatures increase with altitude

Accepted Answer

thermosphere

Answer

mesosphere

Answer

troposphere

Answer

exosphere

Question 7

Least dense layer of the atmosphere

Accepted Answer

exosphere

Answer

mesosphere

Answer

thermosphere

Answer

stratosphere

Question 8

Middle layer of the atmosphere

Accepted Answer

mesosphere

Answer

troposphere

Answer

exosphere

Answer

stratosphere

Question 9

Process by which liquid changes to a gas

Accepted Answer

evaporation

Answer

transpiration

Answer

condensation

Answer

precipitation

Question 10

Process by which plants release water vapor into the air

Accepted Answer

transpiration

Answer

evaporation

Answer

precipitation

Answer

condensation

Question 11

Process by which a gas changes to a liquid

Accepted Answer

condensation

Answer

evaporation

Answer

precipitation

Answer

transpiration

Question 12

Any moisture that falls to the Earth

Accepted Answer

precipitation

Answer

evaporation

Answer

condensation

Answer

transpiration

Question 13

Which answer has the three main freshwater reservoirs in the correct order?

Accepted Answer

79% ice caps and glaciers, 20% groundwater, 1% fresh surface water

Answer

87% lakes, 11% rivers, 2% swamps

Answer

79% ice caps and glaciers, 20% rivers, 1% lakes

Answer

79% fresh surface water, 20% ice caps and glaciers, 1% groundwater

Question 14

Which layer of the geosphere is the thin, outer layer?

Accepted Answer

crust

Answer

ocean

Answer

core

Answer

mantle

Question 15

Which layer of the geosphere is the middle and largest layer?

Accepted Answer

mantle

Answer

core

Answer

crust

Answer

ocean

Question 16

Which layer of the geosphere is the center and is made mostly of metal?

Accepted Answer

core

Answer

mantle

Answer

ocean

Answer

crust

Question 17

Which part of the core is liquid?

Accepted Answer

outer

Answer

inner

Answer

none of it is liquid

Question 18

What part of the core is solid?

Accepted Answer

inner

Answer

outer

Answer

none of it is solid

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