Quiz about Human Impacts

Question 1

Which best describes the change in carbon dioxide levels in Earth's atmosphere since 1960:

Accepted Answer

carbon dioxide levels have been rising

Answer

There has been no change

Answer

carbon dioxide levels have been dropping

Question 2

Which best explains what happens to carbon dioxide when it is absorbed by the ocean:

Accepted Answer

Carbon dioxide reacts with water to produce carbonic acid

Answer

The ocean does not absorb carbon dioxide

Answer

Carbon dioxide reacts with water to produce methane and carbohydrates

Answer

Carbon dioxide reacts with water to produce nucleic acids and proteins

Question 3

Bioclastic rocks are made from:

Accepted Answer

pieces of living things compressed and cemented together

Answer

the solidifying of lava during effusive volcanic eruptions

Answer

the partial melting of rocks due to intense pressure and heat from deep within the Earth

Answer

laboratories in China, Japan, and the U.S.A.

Question 4

The great Pacific garbage patch covers an area of:

Accepted Answer

1.6 million square kilometers

Answer

500 square kilometers

Answer

10 square kilometers

Answer

4.6 billion square kilometers

Question 5

Most of the mass of the garbage patch, almost half, is:

Accepted Answer

fishing nets

Answer

aluminum cans

Answer

baby shoes

Answer

plastic spoons

Answer

plastic straws

Question 6

Which of these are problems associated with fishing nets:

Accepted Answer

Animals get caught in them and drown or starve

Accepted Answer

Nets break coral reefs

Answer

The absorb carbonate from the water

Answer

They make the ocean more acidic

Answer

They make the ocean more basic

Question 7

Which country is responsible for pulling the most fish out of the oceans:

Accepted Answer

China

Answer

The U.S.

Answer

Japan

Answer

Peru

Answer

Indonesia

Question 8

Oceans pull carbon dioxide from the atmosphere to form:

Accepted Answer

Carbonic acid

Answer

Hydrochloric acid

Answer

Sulfuric acid

Answer

Nitric acid

Question 9

Which best explains why the Ocean is called a carbon sink?

Accepted Answer

The ocean absorbs and stores carbon dioxide from the atmosphere.

Answer

The ocean has no impact on atmospheric carbon levels.

Answer

The ocean releases carbon dioxide into the atmosphere.

Answer

The ocean is primarily made of salt water, not carbon.

Question 10

The best definition for bioclastic rocks:

Accepted Answer

Bioclastic rocks are sedimentary rocks composed of fragments of biological origin.

Answer

Bioclastic rocks are igneous rocks formed from cooling magma.

Answer

Bioclastic rocks are exclusively composed of mineral fragments.

Answer

Bioclastic rocks are formed from volcanic activity.

Question 11

Which best describes the relationship between levels of carbon dioxide in the atmosphere and ocean acidification:

Accepted Answer

Higher levels of carbon dioxide in the atmosphere lead to increased ocean acidification.

Answer

Higher levels of carbon dioxide decrease ocean acidity.

Answer

Ocean acidification is unrelated to atmospheric carbon dioxide levels.

Answer

Increased ocean temperatures reduce ocean acidification.

Question 12

Identify two problems associated with increased ocean acidification:

Accepted Answer

Harm to marine organisms that rely on calcium carbonate for shells and skeletons.

Accepted Answer

Decline in coral reef health and growth.

Answer

Enhanced oxygen levels in ocean waters.

Answer

Increased fish populations in coastal areas.

Answer

Reduction of plastic pollution in the ocean.

Question 13

The Great Pacific Garbage Patch is made mostly of what items (CHOOSE TWO):

Accepted Answer

plastic debris

Accepted Answer

Fishing nets

Answer

metal scraps

Answer

organic waste

Answer

glass bottles

Question 14

Identify two problems associated with the Great Pacific Garbage Patch:

Accepted Answer

Harm to marine life due to entanglement. Impacting the food chains.

Accepted Answer

Marine life consuming plastics and then humans consuming marine life

Answer

Increase in ocean temperature due to climate change.

Answer

Improvement of water quality in the Pacific Ocean.

Answer

Enhanced fishing opportunities in the affected areas.

Question 15

Identify one (1) way in which humans can fix the Giant Pacific Garbage Patch issue:

Accepted Answer

Deploy specialized cleanup vessels to collect plastic debris.

Answer

Ignore the problem and hope it goes away.

Answer

Promote the use of single-use plastics.

Answer

Encourage ocean dumping of waste materials.

Answer

Increase plastic production to meet demand.

Question 16

Identify the best definition of overfishing:

Accepted Answer

The depletion of fish stocks from removing fish faster than they can reproduce.

Answer

The practice of fishing without any regulations.

Answer

The increase of fish stocks due to conservation efforts.

Answer

The sustainable management of fish populations.

Question 17

According to estimates, when will the fisheries collapse if overfishing continues at its current rate?

Accepted Answer

2050

Answer

2030

Answer

2040

Answer

2060

Answer

2035

Human Impacts

28 questions

Which best describes the change in carbon dioxide levels in Earth's atmosphere since 1960:

Which best explains what happens to carbon dioxide when it is absorbed by the ocean:

Oceans naturally absorb (a) from the atmosphere. It then reacts with the water to produce carbonic acid.

An increase in carbon dioxide absorption by the ocean leads to a(n) (a) in pH, making the ocean more (b)

Oceans are called carbon sinks, because they (a) from the atmosphere and (b)

Bioclastic rocks are made from:

A collection of marine debris in the North Pacific Ocean.

Describe the great Pacific garbage patch in your own words:

A massive collection of garbage, mostly plastics, trapped and floating in the North Pacific Gyre currents

The great Pacific garbage patch covers an area of:

Many (a) do not wear down; they simply break into smaller pieces.

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Human Impacts

28 questions

Which best describes the change in carbon dioxide levels in Earth's atmosphere since 1960:

Which best explains what happens to carbon dioxide when it is absorbed by the ocean:

Oceans naturally absorb ​ (a) from the atmosphere. It then reacts with the water to produce carbonic acid. ​

An increase in carbon dioxide absorption by the ocean leads to a(n) ​ (a) in pH, making the ocean more ​ (b)

Oceans are called carbon sinks, because they​ (a) from the atmosphere and​ (b)

Bioclastic rocks are made from:

A collection of marine debris in the North Pacific Ocean.

Describe the great Pacific garbage patch in your own words:

A massive collection of garbage, mostly plastics, trapped and floating in the North Pacific Gyre currents

The great Pacific garbage patch covers an area of:

Many ​ (a) do not wear down; they simply break into smaller pieces.

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Oceans naturally absorb (a) from the atmosphere. It then reacts with the water to produce carbonic acid.

An increase in carbon dioxide absorption by the ocean leads to a(n) (a) in pH, making the ocean more (b)

Oceans are called carbon sinks, because they (a) from the atmosphere and (b)

Many (a) do not wear down; they simply break into smaller pieces.