Water Distribution

Choose the answer that best explains one reason why conservation of freshwater is important.

• Freshwater should be conserved because it is limited to Earth's groundwater.
• Freshwater should be conserved because it can be found in large quantities on Earth.
• Freshwater should be conserved because it is limited to Earth's oceans.
• Freshwater should be conserved because it is the only water that can be consumed by humans.

Tags

NGSS.MS-ESS2-4

Less than 1 percent of Earth's freshwater is readily available for human and animal use. Where is the majority of the remaining freshwater located?

• in lakes and rivers
• in the oceans
• in the atmosphere
• in ice caps and glaciers

Tags

NGSS.MS-ESS2-4

TRUE OR FALSE: The hydrosphere is the combined mass of water found on, under, and above the surface of Earth.

• True
• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Based on this diagram, what is true about the total amount of global water?

• 68.7% of Earth's water is in glaciers.
• Lakes make up 20% of our Earth's water.
• Our oceans make up 96.5% of our planet's water.
• Freshwater is most of the water we have on Earth.

Tags

NGSS.MS-ESS2-4

Based on the table, what can you conclude about the percentage of ground ice and permafrost?

• The percentage of ground ice and permafrost is the same as groundwater.
• The percentage of ground ice and permafrost is greater than any other source.
• The percentage of ground ice and permafrost is less than any other source.
• The percentage of ground ice and permafrost is the same as lakes and rivers.

Tags

NGSS.MS-ESS2-4

About 97% of Earth's water is _______________

• Salt water
• Fresh water

A reservoir is an artificial lake that is built to _________________ water for a later time.

• store
• drain
• test
• drink

How are glaciers and oceans similar?

• Both contain salt water and are difficult for humans to use.
• Both contain freshwater and are difficult for humans to use.
• Oceans contain salt water and glaciers contain fresh water, but both both are difficult for humans to use.
• Oceans contain salt water and glaciers contain fresh water, and both both are easy for humans to use.

Identify the statement that best describes where Earth's freshwater can be found.

• Most of the freshwater is trapped in glaciers and ice caps.
• Earth's freshwater is spread out equally over ice, groundwater, and surface water.
• Most of the freshwater on Earth is found underground. The rest is stored as surface water.
• Earth's freshwater is found mostly in rivers and streams. Very little is found in glaciers or ice caps.

Based on this diagram, what can you conclude about rivers and lakes?

• They make up 1% of our total water on Earth

• They make up 1% of the total freshwater on Earth

• Most freshwater on Earth is found in rivers and lakes

• Rivers and lakes can be freshwater or salt water

Tags

NGSS.MS-ESS2-4