Unit 4 Oceans in Action Review

Where do the majority of earthquakes and volcanoes occur?

• on oceanic islands

• in the middle of a continent

• along the border of continents

• in the middle if the ocean

Which of the following is not a type of boundary between tectonic plates?

• transform

• divergent

• convergent

• mantle

Tectonic plates that slide past each other are called

• divergent

• subvergent

• convergent

• transform

Because global fisheries have dramatically seen a reduction in fish numbers, this technique has been used recently to supplement that loss.

• monocropping

• IPM

• contour farming

• aquaculture

An area where there are cold waters, low oxygen levels, and bottom-dwelling organisms.

• benthic zone

• littoral zone

• limnetic zone

• photic zone

Which of the following is the best illustration of the 'Tragedy of the Commons?'

• Agreements among western ranchers to jointly manage common grazing land

• Depletion of fishing stocks in the North Atlantic

• Removing fish from the ocean up to the maximum yield.

• Using sustainable fishing techniques like a pole or spear.

Which of the following describe the relationship between D.O. and B.O.D.?

• When D.O. decreases, the B.O.D. decreases

• When D.O. decreases, the B.O.D. increases

• When B.O.D. decreases, the D.O. decreases

• When B.O.D. increases, the D.O. decreases

Which is true about aquaculturing?

• The amount of aquacultured fish has decreased significantly in favor of wild-caught fish.

• Aquaculturing requires the same inputs as other forms of animal agriculture, including feed and antibiotics.

• Aquaculture operations do not affect the surrounding ecosystem in any adverse way.

• All of the above are true.

Which of these is NOT an environmental concern of farming fish?

• Introducing pesticides, herbicides and antibiotics into the environment

• Transferring disease from farmed fish to wild fish and vica versa

• Increasing waste in slow moving water

• Potentially introducing native fish into the wild

Which of the following is a direct economic advantage associated with aquaculture?

• Aquaculture breeds genetically modified fish to increase the amount of biodiversity in the population

• Aquaculture reduces the number of fishing operations in an area

• Aquaculture produces large amounts of seafood for human purchase and consumption year-round

• Aquaculture requires large bodies of water for its operations