Hydrosphere - Freshwater Unit

Which causes a decrease in the amount of DO in a lake?

• Lower temperatures

• fertilizer runoff

• overfishing

The release of moisture by living plants.

• evaporation

• precipitation

• condensation

• transpiration

A stream that runs into a river is known as a

• Porosity

• Tributary

• Stream Run

• Runoff

The land area that supplies water to a river system is called a

• water table
• trailer
• house
• watershed

Tags

NGSS.MS-ESS2-4

Which environmental factors would most likely impact the quality of a freshwater system?

• dissolved oxygen and pH

• salinity and temperature

• surface tension and aquatic organisms

Which is Earth's largest source of drinking water

• lakes

• rivers

• oceans

• aquifers

Which is used by sewage treatment plants to kill harmful bacteria in water?

• filters

• chlorine

• detergents

• coagulants

Which best describes the amount of frozen water on Earth?

• about 2% of Earth's water is frozen

• about 3% of Earth's water is frozen

• exactly 0.9% of Earth's water is frozen

Which type of precipitation most often soaks the ground and refills groundwater?

• a violent hail storm

• a heavy morning fog

• a gentle, long lasting rain

• a sudden, fast moving thunderstorm

Which type of reservoir could always provide fresh water?

• inland lakes

• river deltas

• mountain glaciers

• tropical seas