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land
food
farmers
deforestation
general
100
Urban Crisis
What is traffic jams, substandard housing, and polluted air and water can be caused by rapid growth in cities, aphenomenon known as???? A. urbanization B. Urban Sprawl C. Urban Crisis
100
A. Food production has not been increasing as fast as the human population
why do so many people in the world go hungry???? A. Food production has not been increasing as fast as the human population B. Food is not distrubituted equally C. Globa warming has contributed to crop failures
100
driving machinery over fields
Which of the following actions contributes to soil erosion??? A. using compost as fertilizer B. driving machinery over fields C. all of these practices contribute to soil ersoion
100
replanting tress in an area
What is reforestation??? A. removing tress in an area B. replanting tress in an area C. removing SELECTED tress in an area
100
provides for protected habitats
the disignation of wilderness areas A. historically forbade mining B. allows for only limited development C. provides for protected habitats
200
Urban Areas
What is Where do most American Live?? A. in Urban areas B. Farms C. Rural areas
200
C. Aquaculture
One potential way to deal with the problem of seafood harvesting is by intesifying efforts with????? A. genetic engineering B. Subsistence farming C. Aquaculture
200
Is reduced by incorporating strips of vegatation into plowed land
It is true that soil loss caused by wind and water A. occurs more slowly in dry areas because the soil sticks B. Is reduced by incorporating strips of vegatation into plowed land C. is always the result of dramatic events such as floods and mudslides
200
re-establishment of trees
Which of the following is NOT an environmental effect of deforestation??? A. reduction of wildlife habitat B. soil erosion C. re-establishment of trees
200
may worse as the U.S. population grows Environmental damage to wilderness areas
Environmental damage to wilderness areas A. is partly the result of ranching activities B. has yet to attract widespread attention C. may worse as the U.S. population grows
300
Overgrazing
Which of the following has NOT resulted from urban sprawl???? A. Suburbs B. overgrazing C. traffic jams
300
B. Humans need to get 8 essential amino acids from the protein they eat
A true statement about nutritional requirements is humans is that??? A. vitamins are of limited importance in growthe and development B. true statement about nutritional requirements is humans is that??? C. Both A & B
300
seeds are planted among the roots of the previous crop
When a farmer uses no-till farming methods, A. seeds are planted among the roots of the previous crop B. more erosion is likely C. All of the above
300
farmers must repeatedly clear additional forest area to obtain land that can support crops
Deforestation is an especially serious problem in tropical rain forest because???? A. farmers must repeatedly clear additional forest area to obtain land that can support crops B. it takes so long for the replacement seedling to reach maturity due to hot climate C. the downed trees are left to rot, damaging the soil
300
B. river and groundwater
Irrigation water usually comes from??? A. rainwater collection B. river and groundwater C. All of the above
400
C. the imporovement in air quality resulting from filtering of pollutants from plants
An important evnironmental beniefit to open spaces in cities include A. contaimination of water sources by runoff of soil B. hotter humid summers due to evoaporation of water C. the improvement in air quality D. All the above
400
continues to be debated among scientists
genetic engineering of food crops A. continues to be debated among scientists B. Is only used with corn C. Both A & B
400
remnants of the previous crop are left to slowly decay
no-till farming helps to conserve soil fertility because A. remnants of the previous crop are left to slowly decay B. deep ridges are cut across, not down, the slopes of hills C. only organic fertilizer and natural pesticides are used
400
selective cutting minimizes the impact on forest ecosytems
which of the following statements about tree harvesting methods is correct???? A. clear-cutting is quick but is more expensive than other methods due to vast areas involved B. selective cutting eliminates the possibility of soil ersoion C. selective cutting minimizes the impact on forest ecosytems
400
bare and exposed to wind
Erosion is most likely when the soil is???? A. bare and exposed to wind B. coverd with grass C. planted to forest
500
range improvement
eliminating invasive plants and replacing them with native plants is one aspect of??? A. urban management B. overgrazing C. range improvement
500
C. New higher-yield crops
All of the following factors can cause famines EXCEPT A. The failure of food production to keep pace with population growth B. crop failure brought by sustained growth C. New higher-yield crops
500
Applying chemical fertilizers
plowing with machins, irrigating with drip systems and _________ are all MODERN agriculuture A.using manure B.irrigating with ditches C. Applying chemical fertilizers
500
all of the above
Impacts of overharvesting include A. soil ersoion B. collapse of food chains C. economic collapse D. All of the above
500
become concentrated in organism high on the food chain
Persistant pesticides are those that A. require repeated high-dose use for optium effect B. retain their high popularity among the U.S. farmers C. become concentrated in organism high on the food chain