unit test multiple choice questions

a subsistence farmer in a developing country who is trying to maximize the amount of crops that he can grow, while disregarding biodiversity would most likely use what method?

clear-cutting

prior to 1940, which of the following was NOT a common form of transportation in U.S. cities?

private automobiles

which of the following would most likely occur in an area that had been clear-cut?

water runoff would increase

the majority of nutrients and calories in the average human diet come from

wheat, corn, and rice

over the past 60 years, as people moved from the U.S. cities to the suburbs , the people that were left behind in the cities were primarily

older, poor people representing ethnic minorities

much of the increase in atmospheric methane is due to

bovine (cows and their relatives) flatulence

most of the grain grown in the united states goes to

feed domestic animals

the majority of nutrients and calories in the average human diet come from

wheat,corn, and rice

which of the following is NOT affected by deforestation?

ozone layer hole

over the past 50 years in the united states, commuting

time has remained about the same, but the distance has doubled

which tree harvesting method is the worst ecologically?

clear-cutting

cities which are judged “smart” have all of the following elements except:

reduced mass transit

Farmers can sharpl reduce fertilizer runoff by

I. using prescribed amounts of water

II. fertilizing only sloped areas, but not flat areas

III. planting legumes and other nitrogen-fixing plants

I and III

which of the following is a cause of tropical deforestation?

I. poverty

II. conservation easements

III. population growth

I. and III.

why has the amount of fertilizers and the frequency with which they are used increased?

to increase crop yields

the chemical industry is now producing synthetic chemical pesticides which break down within a few days after application. the advantage(s) of such pesticides is that:

they will not bioaccumulate in wildlife far from the area of application

subsistence farming can have a great adverse environmental impact because

high populations and low yields encourage land clearing for crop production

what type of fishing uses funnel-shaped net with doors to catch bottom-dwelling fish

trawling

which of the following would NOT be a principle for sustainable land use?

take all the resources possible from a given area of land

the main financial problems for a city experiencing urban blight result from

a declining tax base

which of the following actions is consistent with sustainable agriculture?

planting alternating rows of multiple crops

a key factor of the decline of world fish stocks is

overfishing

urban sprawl had resulted in

increased commuting distances

which of the following would increase or enhance the sustainability of fisheries?

I. use labels that allow consumers to identify fish that have been harvested sustainably

II. reduce ot eliminate fishing subsides

III. impose fees for harvesting fish and shellfish from publicly owned and managed offshore water

I, II, and III

the major cause of decreased inland wetland areas in the united states is

agricultural practices and approaches

the lack of essential nutrients such as amino acids,vitamins, and mineral is referred to as

malnutrition

all of the following are environmental consequences of increased meat production EXCEPT:

decrease in the spread of diseases such as mad cow disease in herd animals