de env

Question 1

Coral bleaching can be hazardous to some fish species because:

Answer 1

a. coral reefs provide unique habitats for fish

Question 2

Which of the following does not contribute to an increase in global greenhouse gas levels?

Answer 2

d. dissolving of coral by carbonic acid

Question 3

Based on the data in the graph, altering human activity in which of the following areas will most benefit plant species?

Answer 3

c. Introduction of invasive species

Question 4

Which type of organism is expected to thrive due to the conditions that are predicted due to climate change?

Answer 4

a. infectious tropical diseases caused by bacteria or fungi

Question 5

In general, which of the following is the best long-term method of preventing extinctions?

Answer 5

c. Protecting the habitats of endangered species

Question 6

Which statement about feedback loops that occur with climate change is true?

Answer 6

d. increased soil decomposition or peat moss decomposition under warmer temperatures represents a positive feedback loop

Question 7

Which greenhouse gas is NOT correctly paired with one of its sources?

Answer 7

b. methane: automobile

Question 8

Which of the following would be most likely to occur in the scenarios that have experienced habitat loss and/or fragmentation in the diagram?

Answer 8

a. decrease in the number of specialist species

Question 9

All of the following gases have been implicated in contributing to the increase in global temperature via the greenhouse effect EXCEPT:

Answer 9

e. O2

Question 10

The most precise description of ‘global warming’ is:

Answer 10

c. change that results in average temperature increase for oceans, landmasses, and atmosphere of Earth

Question 11

This gas does NOT contribute in a large way to the greenhouse effect:

Answer 11

b. O3

Question 12

Rising sea levels that result from global warming are directly caused by:

Answer 12

c. 1 and 2

Question 13

Which of the following best exemplifies global collaboration for a sustainable environment?

Answer 13

b. the Montreal Protocol

Question 14

Habitat fragmentation:

Answer 14

e. all of the above

Question 15

Which of the following events would most likely lead to a decrease in the pH in the oceans?

Answer 15

b. increased burning of fossil fuels in power plants

Question 16

In models of global warming, the most important factor contributing to an increase in sea level is:

Answer 16

c. thermal expansion of the oceans

Question 17

Which of the following originally prohibited the illegal procurement and sale of wildlife?

Answer 17

d. The Lacey Act

Question 18

Which of the following events would most likely lead to a decrease in the pH in the oceans?

Answer 18

a. Increased burning of fossil fuels from power plants

Question 19

A large forested area is fragmented into small forest tracts separated by agricultural areas. This change will most likely lead to:

Answer 19

b. a decrease in the gene flow within species of the original forest

Question 20

Which of the following describes the most likely change to the distribution of red pine over the next 200 years?

Answer 20

b. Red pine distribution will shift northward into Canada

Question 21

The factor that likely poses the greatest threat of extinction of species worldwide is:

Answer 21

c. increasing loss of habitat

Question 22

Which of the following best describes the primary cause of global ocean warming?

Answer 22

c. Increased global temperature from an increase in greenhouse gases in the atmosphere

Question 23

Which of the following substances is released by CFCs and catalyzes a chain reaction that breaks down ozone in the upper atmosphere?

Answer 23

d. Chlorine

Question 24

How many units of energy return to space from Earth and its atmosphere?

Answer 24

d. 100

Question 25

The current extinction crisis differs from previous mass extinctions in that:

Answer 25

c. the current crisis is caused by the human species

Question 26

Which of the following is the best explanation for the temperature difference with and without Earth’s atmosphere?

Answer 26

c. Absorption of infrared radiation by atmospheric gases

Question 27

Which of the following not only results from greenhouse warming but also contributes to additional warming of Earth?

Answer 27

a. Decreased size of snowpack

Question 28

This layer of Earth’s atmosphere contains the ozone layer that absorbs the sun’s ultraviolet rays:

Answer 28

d. stratosphere

Question 29

Why do non-native species often become invasive?

Answer 29

b. they can outcompete native species

Question 30

Which of the following best describes why water vapor, a greenhouse gas, is not considered a significant contributor to global climate change?

Answer 30

c. water vapor has a relatively short residence time in the atmosphere

Question 31

Which of the following characteristics would make a species less prone to extinction?

Answer 31

c. producing many offspring when environmental conditions are favorable