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Environmental Change and Challenge, Third Edition - Chapter 8

Instructions: For each question, click on the radio button beside your answer. When you have completed the entire quiz, click the Submit my answers button at the bottom of the page to receive your results.

Question 1:


a) 30 per cent
b) 40 per cent
c) 50 per cent
d) 60 per cent
e) 80 per cent

Question 2:


a) True
b) False

Question 3:


a) at depths below 200 metres
b) on the continental shelves
c) around hydrothermal vents
d) Both a and c.
e) Both b and c.

Question 4:


a) True
b) False

Question 5:


a) a polyp
b) an endangered species
c) bycatch
d) Both a and b.
e) Both b and c.

Question 6:


a) have been extinct since 1988
b) are over 9,000 years old
c) exist at depths of between 65 and 140 metres
d) are known only as fossils in Europe
e) are flourishing

Question 7:


a) True
b) False

Question 8:


a) Over 2 million
b) Over 3 million
c) Over 5 million
d) Over 6 million
e) Over 7 million

Question 9:


a) was worth over $33 million
b) provided income to about 12,000 sealers and their families
c) allowed 975,000 harp seals to be caught
d) None of the above.
e) All of the above.

Question 10:


a) Approximately 2,300
b) Approximately 9,000
c) Approximately 16,000
d) Approximately 23,000
e) Approximately 37,000

Question 11:


a) True
b) False

Question 12:


a) 25 per cent
b) 19 per cent
c) 30 per cent
d) 50 per cent

Question 13:


a) True
b) False

Question 14:


a) only in freshwater
b) only in saltwater
c) partly in freshwater and partly in saltwater
d) None of the above.

Question 15:


a) True
b) False