Chesapeake Bay Pollution

What are the three major contributors to the poor health of streams, rivers, and the Chesapeake Bay?

• Nitrogen, carbon dioxide, and gravel

• Nitrogen, phosphorus, and sediment

• Oxygen, phosphorus, and silt

• Carbon, nitrogen, and sand

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

How do high levels of nitrogen and phosphorus affect algae growth in the water?

• They decrease algae growth by blocking sunlight.

• They have no significant effect on algae growth.

• They fuel unnaturally high levels of algae growth.

• They increase the oxygen levels which reduce algae growth.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

What is the consequence of too much sediment in the water for aquatic grasses and bottom-dwelling species?

• It increases the clarity of the water, helping aquatic life.

• It has no significant effect on aquatic grasses or species.

• It blocks sunlight from reaching aquatic grasses and can smother bottom-dwelling species.

• It provides additional nutrients for aquatic grasses to grow.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Where do excessive amounts of nitrogen and phosphorus in the Chesapeake Bay primarily come from?

• Natural forest growth and clean air

• Fertilizers, wastewater, and septic tank discharges

• Pure water sources and organic matter

• Saltwater intrusion and marine life

Tags

NGSS.MS-ESS3-4

What is the main purpose of the federal Clean Water Act (CWA) as it relates to polluted waterways?

• To promote the development of forests and farmland

• To deregulate the use of fertilizers and pesticides

• To identify polluted waterways and list them as "impaired"

• To increase the amount of sediment in waterways

Under the Clean Water Act (CWA), what is the Environmental Protection Agency (EPA) required to do?

• Increase the number of waterways

• Set limits on pollutants that impair waterways

• Monitor wildlife in the waterways

• Build new water treatment facilities

In what year did the EPA set limits on nitrogen, phosphorus, and sediment pollution for the Chesapeake Bay watershed under an Executive Order from President Obama?

• 2005

• 2010

• 2015

• 2020

Tags

NGSS.HS-ESS3-4

NGSS.HS-LS2-7

By what year are the states expected to achieve the pollution limits set by the EPA for the Chesapeake Bay watershed?

• 2015

• 2020

• 2025

• 2030

What is the purpose of the pollution limits and state plans developed for the Chesapeake Bay watershed?

• To promote tourism in the area

• To increase commercial fishing

• To create a blueprint for cleaning up the Chesapeake Bay and its rivers and streams

• To deregulate the use of the watershed

Tags

NGSS.MS-LS2-5

The amount of agricultural runoff, including animal waste and fertilizers, contributes ___% of pollution into the Chesapeake Bay.

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

NGSS.MS-LS2-5