Question 1

Although __________________________________________________ is usually organic and utilizes few pesticides,it is not always a sustainable form of agriculture because techniques such as slash and burn may be used.

Accepted Answer

The answer of Although __________________________________________________ is usually organic and utilizes...

Question 2

What proportion of people in developing countries are undernourished or malnourished?

Accepted Answer

A)  one in four 
B)  one in nine 
C)  one in eight 
D)  one in ten

Question 3

____________________ fishing involves dragging a funnel-shaped net across the ocean bottom.

Accepted Answer

The answer of ____________________ fishing involves dragging a funnel-shaped net...

Question 4

Which food is among the three foods that make up half of the calories consumed by humans?

Accepted Answer

A)  fish 
B)  wheat 
C)  beef 
D)  soybean

Question 5

A garden plot contains ten species that mature at different times.Some species are used for food,fuel,or medicine.Some take nutrients from the soil,and some return nutrients to the soil.Which term best describes the garden plot?

Accepted Answer

A)  It is polyvarietal cultivation. 
B)  It is intercropping. 
C)  It is agroforestry. 
D)  It is a polyculture.

Question 6

Some farmers create ____________________ to reduce wind erosion and retain soil moisture.

Accepted Answer

The answer of Some farmers create ____________________ to reduce wind...

Question 7

What percentage of the global annual commercial fishery catch is composed of marine fish and shellfish?

Accepted Answer

A)  about 91% 
B)  about 71% 
C)  about 51% 
D)  about 31%

Question 8

Traditional agriculture is less productive than large-scale farming but it is practiced by almost half of the world's population.

Accepted Answer

A) True 
 B)False

Question 9

How many types of organisms supply the global population with 90% of its food?

Accepted Answer

A)  about 52 
B)  about 32 
C)  about 22 
D)  about 12

Question 10

Which plant has been called a "supermarket on a stalk"?

Accepted Answer

A)  a peanut plant 
B)  a winged bean plant 
C)  a soybean plant 
D)  a rice plant

Question 11

What is one way that industrialized agriculture impacts water resources?

Accepted Answer

A)  It pollutes surface waters with fertilizer. 
B)  It protects aquifer resources. 
C)  It prevents sediment pollution. 
D)  It prevents eutrophication.

Question 12

Desertification increases run-off,soil erosion,groundwater recharge,and soil structure.

Accepted Answer

A) True 
 B)False

Question 13

What is one benefit of aquaculture?

Accepted Answer

A)  It has no environmental impacts. 
B)  It uses no fuel. 
C)  It does not affect natural habitats. 
D)  The yields in small volumes of water are high.

Question 14

What is required by industrialized agriculture?

Accepted Answer

A)  large amounts of pesticides 
B)  small amounts of water 
C)  small amounts of fossil fuels 
D)  no inorganic fertilizers

Question 15

Which type of plant are agricultural experts developing in order to increase food production?

Accepted Answer

A)  plants that do not require any water 
B)  plants that do not require light 
C)  plants that make their own inorganic fertilizer 
D)  plants that grow in salty soil

Question 16

Which type of agriculture usually involves growing only a single type of crop?

Accepted Answer

A)  plantation agriculture 
B)  industrialized agriculture 
C)  minimum-tillage agriculture 
D)  traditional intensive agriculture

Question 17

What characterizes the plants of the second green revolution?

Accepted Answer

A)  They are adapted to drought. 
B)  They are giant varieties. 
C)  They are slow growing. 
D)  They are high-yield varieties.

Question 18

Which type of agriculture is most characteristic of developed countries?

Accepted Answer

A)  traditional subsistence agriculture 
B)  traditional intensive agriculture 
C)  plantation agriculture 
D)  industrialized agriculture

Question 19

A relationship between poverty and soil erosion occurs in many developing countries.The plowing of marginal land by poor farmers leads to soil erosion,land degradation,and thus to further poverty.What type of cycle is this?

Accepted Answer

A)  It is a destructive negative feedback cycle. 
B)  It is a constructive positive feedback cycle. 
C)  It is a destructive positive feedback cycle. 
D)  It is a constructive negative feedback cycle.

Question 20

Which statement best describes aquaponics?

Accepted Answer

A)  It involves removing oxygen from a body of water. 
B)  It involves raising fish with plants. 
C)  It involves organic feed for the fish 
D)  It involves raising fish in tanks on land.

Exam 14: Food and Soil Resources