Unit 7: Humans and the Hydrosphere

A local community is concerned about the safety hazard a dam presents to local boaters, the impact it has on a popular fish species, and water quality. They remove the dam. How would conditions improve downstream?

• Dissolved oxygen will decrease.

• Natural sediment flow will be restored.

• Groundwater levels will increase.

• Sediment in the water will decrease.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

NGSS.MS-ESS2-1

A(n) layer is at the bottom of an aquifer. Water is added to the aquifer when precipitation moves through ground that is ___. When constructing new homes, builders should make sure fuel tanks are properly sealed to prevent _

• Impermeable, permeable, pollutants getting into groundwater

• porous, soft, rain from getting into groundwater

• impermeable, liquid, plastics getting into groundwater

• porous, permeable, pollutants getting into groundwater

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-1

The cause of the dead zone in the ocean is fertilizers used in . Precipitation dissolves the fertilizers in ____ from farms and lawns. The dissolved fertilizers enter ____ that drain into the ocean.

• soil, runoff, rivers

• deep ocean, animals, the air

• soil,crops, rivers

• air, crops, mountains

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which solutions on farms near the Mississippi River will best address dead zones? Select two answers.

• Build up river banks

• Reduce crop rotation

• Remove animal waste

• Water more often

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

People depend on the oceans. People obtain ___ from the motion of ocean water. Through desalination, the ocean provides ____ . Ocean beaches are visited by millions of people during the summer for ___.

• energy, freshwater, recreation

• pets, plastics, migration

• fertilizer, sediment, freshwater

• fertilizer, freshwater, migration

Tags

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RL.6.2

CCSS.RL.7.2

CCSS.RL.8.2

Refer to the diagram. How does agricultural runoff most likely affect the coastal waters?

• Irrigation in the agricultural fields reduces the freshwater flow into the river, increasing ocean salinity.

• Excess fertilizer from the agricultural fields is washed into the river, leading to algal blooms in the ocean.

• Sediment from plowed fields accumulates in the river, reducing water clarity and affecting marine life.

• Pesticides from agricultural runoff poison fish populations near the coast.

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

How have human activities modified ocean systems?

• Discared plastics can trap, suffocate, and cause gastrointestinal problems for marine life, resulting in starvation.

• Runoff with excessive chemicals can increase nutrients, resulting in more plant growth and reducing the dissolved oxygen content of the water.

• Oil from the oil spills penetrates the fur and feathers of organisms, causing vulnerability to temperature changes and decreasing buoyancy in water.

• All of the answers listed are ways that oceans are affected.

Tags

NGSS.MS-ESS3-3

Runoff has increased in recent years because of human activities. Which activity has caused the greatest increase in polluted runoff?

• City urbanization

• Higher water usage

• Legal dumping

• Irrigation

Tags

NGSS.MS-ESS3-4

What is not an example of how humans depend on ocean systems?

• climate regulation

• source for natural resources

• excess carbon dioxide production

• transportation

Tags

NGSS.MS-ESS2-4

The table shows material used for artificial reefs. Which is the best choice to use for reefs?

• Tires

• Naval ships

• Wooden furniture

• Refrigerators

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5

NGSS.MS-ETS1-1