Unit 2 Earth's Systems Lesson 1

What does the word hydro mean?

• air

• stone

• water

• fire

Tags

NGSS.MS-ESS2-4

Humans live in the ____ level of the atmosphere.

• stratosphere

• mesosphere

• troposphere

• thermosphere

The greenhouse effect happens when energy from the sun is ___.

• reflected back into space.

• absorbed by clouds of dust before it reaches Earth.

• reflected off Earth and absorbed in the atmosphere.

• absorbed by the plants on Earth's surface.

Tags

NGSS.MS-ESS3-5

How much of the hydrosphere is salt water?

• 97%

• 75%

• 69%

• 30%

Over half of Earth's fresh water is ____.

• frozen as ice.

• underground.

• in rivers.

• in lakes.

Tags

NGSS.MS-ESS2-4

Which of Earth's layers is made up of liquid metal?

• crust

• mantle

• outer core

• inner core

The water cycle is the process of how water ____.

• creates clouds.

• is conserved.

• spreads out.

• is created.

Tags

NGSS.MS-ESS2-4

Which of Earth's major systems contains or planet's water and ice?

• atmosphere

• biosphere

• mesosphere

• hydrosphere

Tags

NGSS.MS-ESS2-4

What percentage of Earth's fresh water can we use?

• 30.8%

• 97.5%

• 68.9%

• 0.3%

Tags

NGSS.MS-ESS2-4

According to the graph what percentage of our freshwater is wrapped up in glaciers?

• 97.5%

• 30.8%

• 68.9%

• 2.5%

Tags

NGSS.MS-ESS2-4