Question 1

Currently, what are the main sources of marine pollution? How can these be reduced or eradicated in the future?

Accepted Answer

Runoff and discharges from land, and air

Question 2

Which of the following statements is FALSE concerning bycatch?

Accepted Answer

A) Bycatch are animals unintentionally killed while fishing for other species. 
B) Bycatch sometimes greatly exceeds the target catch. 
C) Bottom trawling is one of the methods that results in a lot of bycatch. 
D) Bycatch are commonly used for food as well. 
A) Bycatch are animals unintentionally killed while fishing for other species. 
B) Bycatch sometimes greatly exceeds the target catch. 
C) Bottom trawling is one of the methods that results in a lot of bycatch. 
D) Bycatch are commonly used for food as well.

Question 3

With a human population of over 7 billion, what is the importance of understanding the maximum sustainable yields of fisheries?

Accepted Answer

Marine sources account for about 16% of

Question 4

Chlorinated hydrocarbons are ____.

Accepted Answer

A) toxic compounds used in pesticides and industrial solvents that cause problems in some areas of the ocean 
B) created by chemosynthetic bacteria in the ocean 
C) a physical resource extracted along with petroleum 
D) important nutrients for some species of phytoplankton 
A) toxic compounds used in pesticides and industrial solvents that cause problems in some areas of the ocean 
B) created by chemosynthetic bacteria in the ocean 
C) a physical resource extracted along with petroleum 
D) important nutrients for some species of phytoplankton

Question 5

How has the average per capita world fish catch changed over the last several decades?

Accepted Answer

A) It has been climbing steadily since the 1950s. 
B) After declining in the 1960s, it has increased sharply since 1970. 
C) It has stayed at 1960 levels. 
D) It increased steadily to about 1970, and then declined. 
A) It has been climbing steadily since the 1950s. 
B) After declining in the 1960s, it has increased sharply since 1970. 
C) It has stayed at 1960 levels. 
D) It increased steadily to about 1970, and then declined.

Currently, what are the main sources of marine pollution? How can these be reduced or eradicated in the future?

Which of the following statements is FALSE concerning bycatch?

With a human population of over 7 billion, what is the importance of understanding the maximum sustainable yields of fisheries?

Chlorinated hydrocarbons are ____.

How has the average per capita world fish catch changed over the last several decades?

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Filters

Exam 15: Uses and Abuses of the Ocean

Currently, what are the main sources of marine pollution? How can these be reduced or eradicated in the future?

Which of the following statements is FALSE concerning bycatch?

With a human population of over 7 billion, what is the importance of understanding the maximum sustainable yields of fisheries?

Chlorinated hydrocarbons are ____.

How has the average per capita world fish catch changed over the last several decades?

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Filters