People Affect the Ocean

The diagram below shows the relationship between some of the organisms in a marine food web. Which of the following is MOST LIKELY to happen if a large number of phytoplankton are killed from runoff entering the ocean?

• The number of porpoises would probably stay the same because porpoises are far removed from phytoplankton in the food web

• The number of zooplankton would probably increase because they wouldn’t have to compete with phytoplankton for food.

• The number of salmon would probably decrease because there would be less food available for zooplankton and herring.

• The Sun would probably not emit as much energy because there would not be as many phytoplankton in the ocean.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is one way humans are trying to positively impact the ocean?

• Fishing

• Creating artificial reefs

• Harvesting oil and natural gas

• Transporting goods in ocean vessels

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5

This graph shows the sources of the nitrogen entering the Gulf of Mexico as pollution. What is one conclusion you can make based on the information in the graph?

• Nitrogen that comes from the atmosphere is more harmful than nitrogen that comes from crops.

• Most nitrogen pollution found in the Gulf of Mexico comes from farming crops.

• Corn and soybeans are the only crops associated with nitrogen pollution.

• Nitrogen is not a problem in the Gulf of Mexico.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is NOT a source of pollution in the ocean?

• Nitrogen and phosphorus from fertilizers used on land.

• Oils found on city streets.

• Sand drifting along the bottom of the ocean floor.

• Emissions from gas-burning vehicles.

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

What can humans do to protect our oceans?

• Ignore plastic waste, promote overfishing, waste water, avoid beach clean-ups

• Increase plastic waste, support unsustainable fishing practices, waste water, avoid beach clean-ups

• Encourage plastic waste, support unsustainable fishing practices, waste water, avoid beach clean-ups

• Reduce plastic waste, support sustainable fishing practices, conserve water, participate in beach clean-ups

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The best way to keep the ocean clean is to ______________________.

• skim trash regularly

• establish regulations for safety and environmental regulations

• stop using the ocean as a resource

• start a war to take over the ocean as our own resource

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5

The largest source of pollution in the ocean comes from __________.

• Oil Spills

• Acid Rain

• Runoff

• Wind

Tags

NGSS.MS-ESS3-3

Which of the following is associated with dead zones in the ocean?

• A decrease in nitrogen levels.

• An increase in oxygen levels.

• An increase in the number of fish.

• Runoff from fertilizers.

Tags

NGSS.MS-LS2-5

If the acidity in the oceans keep increasing every year, which poses a greater threat to the ocean life?

• coral reefs - the acid eats away at the calcium carbonate that makes up the reef.

• algae - the acid makes it easier for the algae to grow.

• sea turtles - the acid strengthens their shells.

• kelp - the acid strengthens their ability to keep their roots attached.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Which organisms are the basis of a marine food web?

• Crabs

• Photoplankton

• Fish

• Zooplankton

Tags

NGSS.MS-LS2-3