Question 1

Ocean acidification results in which of the following?

Accepted Answer

A)  A decrease in ocean pH, resulting in less calcium carbonate available for plankton and corals to build shells and exoskeletons 
B)  An increase in ocean pH, resulting in more calcium carbonate available for plankton and corals to build shells and exoskeletons 
C)  A decrease in ocean pH, resulting in more calcium carbonate available for plankton and corals to build shells and exoskeletons 
D)  An increase in ocean pH, resulting in less calcium carbonate available for plankton and corals to build shells and exoskeletons 
A)  A decrease in ocean pH, resulting in less calcium carbonate available for plankton and corals to build shells and exoskeletons 
B)  An increase in ocean pH, resulting in more calcium carbonate available for plankton and corals to build shells and exoskeletons 
C)  A decrease in ocean pH, resulting in more calcium carbonate available for plankton and corals to build shells and exoskeletons 
D)  An increase in ocean pH, resulting in less calcium carbonate available for plankton and corals to build shells and exoskeletons

Question 2

Which of the following is true of eutrophication in marine ecosystems?

Accepted Answer

A)  Eutrophication aids the ecosystems by providing needed limiting nutrients, such as phosphorus. 
B)  Eutrophication is rare and occurs only in bad weather. 
C)  Eutrophication can kill fish. 
D)  Eutrophication can aid corals by killing parasites. 
A)  Eutrophication aids the ecosystems by providing needed limiting nutrients, such as phosphorus. 
B)  Eutrophication is rare and occurs only in bad weather. 
C)  Eutrophication can kill fish. 
D)  Eutrophication can aid corals by killing parasites.

Question 3

-The Great Pacific Garbage Patch (or Eastern Garbage Patch) is a region of the Pacific Ocean northeast of Hawaii where high concentrations of marine debris can be found. This debris includes easily visible large pieces of floating litter such as plastic bottles, along with vast quantities of easily- overlooked confetti- sized plastic particles suspended in the surface waters. The patch is estimated to be at least the size of Texas, with some estimates as great as the size of the continental United States. Several such patches exist in the various oceans across the globe. What is the most logical explanation for the existence of these patches?

Accepted Answer

A)  The rotation of the planet causes marine debris to be pulled toward the Equator, where most of these patches are found. 
B)  The patches are found along shipping lanes where cruise ships illegally dispose of their garbage by throwing it overboard. 
C)  Currents circulate plastics and other debris until they accumulate in areas where currents are more sluggish. 
D)  There are several locations in the middle of the oceans where it is legal to dump wastes. 
A)  The rotation of the planet causes marine debris to be pulled toward the Equator, where most of these patches are found. 
B)  The patches are found along shipping lanes where cruise ships illegally dispose of their garbage by throwing it overboard. 
C)  Currents circulate plastics and other debris until they accumulate in areas where currents are more sluggish. 
D)  There are several locations in the middle of the oceans where it is legal to dump wastes.

Question 4

The Great Pacific Garbage Patch (or Eastern Garbage Patch) is a region of the Pacific Ocean northeast of Hawaii where high concentrations of marine debris can be found. This debris includes easily visible large pieces of floating litter such as plastic bottles, along with vast quantities of easily overlooked confetti- sized plastic particles suspended in the surface waters. The patch is estimated to be at least the size of Texas, with some estimates as great as the size of the continental United States. Several such patches exist in the various oceans across the globe. Which of the following materials is most likely to end up in the Great Pacific Garbage Patch?

Accepted Answer

A)  A glass bottle discarded into a garbage can at a convenience store in Seattle, Washington 
B)  Debris from a ship that capsized and sank in a storm off the coast of Japan 
C)  A toy army soldier flushed down the toilet in Los Angeles, California 
D)  A barrel of hazardous waste illegally dumped off the coast of Chile 
A)  A glass bottle discarded into a garbage can at a convenience store in Seattle, Washington 
B)  Debris from a ship that capsized and sank in a storm off the coast of Japan 
C)  A toy army soldier flushed down the toilet in Los Angeles, California 
D)  A barrel of hazardous waste illegally dumped off the coast of Chile

Question 5

A hypoxic zone is most likely to directly kill which of the following?

Accepted Answer

A)  Zooplankton 
B)  Oysters and crabs 
C)  Marine mammals such as dolphins and whales 
D)  Primary producers such as phytoplankton and seaweed 
A)  Zooplankton 
B)  Oysters and crabs 
C)  Marine mammals such as dolphins and whales 
D)  Primary producers such as phytoplankton and seaweed

Question 6

If ocean water traveling in a current warms from 10 to 20 °C, it would .

Accepted Answer

A)  decrease in salinity 
B)  decrease in density 
C)  dissolve increased amounts of carbon dioxide from the atmosphere 
D)  decrease in pH 
A)  decrease in salinity 
B)  decrease in density 
C)  dissolve increased amounts of carbon dioxide from the atmosphere 
D)  decrease in pH

Ocean acidification results in which of the following?

Which of the following is true of eutrophication in marine ecosystems?

A hypoxic zone is most likely to directly kill which of the following?

If ocean water traveling in a current warms from 10 to 20 °C, it would .

The Science of Sustainability

Environmental Policy

Economics and Values

Biodiversity and Evolution

Populations and Communities

Ecosystems and Biomes

Biogeochemical Cycles

Freshwater

Atmosphere and Air Pollution

Oceans

Climate

Human Populations

Land Use

Agriculture

Human Health and the Environment

Energy Use

Nonrenewable Energy

Renewable Energy

Science Fundamentals

Filters

Exam 15: Solid and Hazardous Waste

Ocean acidification results in which of the following?

Which of the following is true of eutrophication in marine ecosystems?

A hypoxic zone is most likely to directly kill which of the following?

If ocean water traveling in a current warms from 10 to 20 °C, it would .

The Science of Sustainability

Environmental Policy

Economics and Values

Biodiversity and Evolution

Populations and Communities

Ecosystems and Biomes

Biogeochemical Cycles

Freshwater

Atmosphere and Air Pollution

Oceans

Climate

Human Populations

Land Use

Agriculture

Human Health and the Environment

Energy Use

Nonrenewable Energy

Renewable Energy

Science Fundamentals

Filters