Hydrosphere (study guide)

Why is MOST of the freshwater on Earth not available for our use?

• All freshwater on Earth is easily accessible for use.
• It is frozen in the icecaps and glaciers.
• It is surface water.
• It is underground.

Tags

NGSS.MS-ESS2-4

How much of Earth's water is unavailable for humans to consume due to its high salinity? 

• 3%
• 23%
• 77%
• 97%

Why must humans clean water before using it? 

• Humans are unable to digest untreated river water
• River water is free of any contaminant or pollutants
• Untreated river water is brown and humans prefer clear water
• Clear water may contain contaminants that could harm humans
  

How is freshwater treatment different from wastewater treatment?

• Freshwater contains oils and vitamins needed for health

• wastewater is not treated after use to protect the environment

• Wastewater removes pollution to make potable water

• Wastewater is treated after use to protect the environment

Which statement best describes how estuaries are positive environment for animals and plants

• They flood regularly destroying organisms' habitat

• They provide a safe hatchery full of nutrients and food

• They dry up each summer stranding organisms in shallow water

• hold high numbers of predators to feed off young organisms

Which statement best describes why an algae bloom forms? 

• Decreased amounts of fish eating on the algae
• Decreas of pollution allow algae absorb gases and grow fast
• High amount of light stimulate photosynthesis to occur
• High amounts of fertilizer from farms/ fast growth of algae
  

Tags

NGSS.MS-LS2-1

All the water on, in , and surrounding the earth

• Atmosphere
• Hydrosphere
• Biosphere
• Lithosphere

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NGSS.MS-ESS2-4

Why is freshwater important?

• So we can have lakes and Rivers
• There is no such thing as freshwater.
• We need it to survive.

Tags

NGSS.MS-ESS2-4

When water goes from being a liquid to a gas (water vapor), that process is called

• Condensation
• Evaporation
• Precipitation
• Transpiration

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

When water goes from being a gas (water vapor) to a liquid, that process is called 

• Condensation
• Evaporation
• Transpiration
• Precipitation

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4