Soil and Agriculture — Unit test

Question 1

The oceans were formed when the earth cooled and water vapor condensed to create rain.

Revolt · Accepted Answer

T

Question 2

It is crucial to study ocean microbes because _______.a.they control the major biogeochemical cycles that keep Earth’s biosphere in balance b.they are a significant source of greenhouse gases and pollutionc.they are frequently used as food sources in developing nationsd.they provide a significant alternative energy source used to replace coal and oil

Revolt · Accepted Answer

A

Question 3

Wetlands occurring in areas with a large amount of trees are most likely _______.a.swampsb.bogsc.marshesd.none of the above

Revolt · Accepted Answer

A

Question 4

Dutch agriculture is one of the most labor intensive types of agriculture in the world.

Revolt · Accepted Answer

F

Question 5

Wetlands help reduce erosion through _______.a.nutrient absorptionb.sediment trappingc.bacterial absorptiond.all of the above

Revolt · Accepted Answer

B

Question 6

The U.S. Integrated Ocean Observing System (IOOS) is best described as _______.a.a public and private partnership to increase understanding of the oceansb.a program to improve ocean safetyc.a partnership aimed at protecting the environmentd.all of the above

Revolt · Accepted Answer

D

Question 7

Which of the following regions has the highest population living in rural areas?a.Asiab.Africac.North Americad.Europe

Revolt · Accepted Answer

B

Question 8

Which of the following best describes the use of rainforest plants as anticancer drugs?a.Most rainforest plants have been tested for their cancer fighting properties.b.Twenty-five percent of the active ingredients in cancer drugs are exclusively rainforest plants.c.The most powerful anticancer drugs are not rainforest plants.d.All of the above

Revolt · Accepted Answer

B

Question 9

Which of the following does not explain the importance of mangrove forests?a.They provide shelter to organisms on high energy coasts.b.They help prevent erosion along coasts.c.They increase surface runoff and flooding.d.They filter and process pollutants out of the environment.

Revolt · Accepted Answer

C

Question 10

Which of the following best describes the uses of private land?a.Private land cannot be used to operate businesses.b.After initial construction. the uses of private land do not change. c.It can be used for a variety of activities and businesses.d.None of the above.

Revolt · Accepted Answer

C

Soil and Agriculture — Unit test Answers

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