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Environmental Science QUIZ chat. 12,13, and 14

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235 Environmental science Quiz on Environmental Science QUIZ chat. 12,13, and 14, created by roxyobx on 13/11/2015.
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Quiz by roxyobx, updated more than 1 year ago
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Created by roxyobx about 9 years ago
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Resource summary

Question 1

Question
The study of the process by which the lithospheric plates move over the asthenosphere is called:
Answer
  • Shelterbelt
  • plate boundaries
  • overburden
  • plate tectonics

Question 2

Question
Which of the following is not a category of rock types?
Answer
  • Minerals
  • Igneous
  • Sedimentary
  • Metamorphic

Question 3

Question
Metallic or nonmetallic elements or compounds of elements that occur naturally in earth's crust are:
Answer
  • alloys
  • minerals
  • ferrous
  • poisonous

Question 4

Question
The process by which ore is melted at high temperatures to remove impurities is termed
Answer
  • exclusion mining
  • thermal mining
  • chromatography
  • smelting

Question 5

Question
How are mining lands restored?
Answer
  • land is filled in, graded to its natural contours and vegetation planted
  • toxic pollutants are removed through chemical neutralization processes
  • a few seeds are thrown on the ground
  • mining lands cannot be restored

Question 6

Question
The soil profile layer that is mostly organic matter and humus where plant litter accumulates and decays
Answer
  • A-Horizon
  • B-Horizon
  • C-Horizon
  • O-Horizon

Question 7

Question
Sustainable soil use is the
Answer
  • constant augmentation of soils to maintain their productivity.
  • planting of the same crops in a field over a period of years.
  • use of soil resources without a reduction in the amount or fertility of the soil.
  • changing of the soil profile periodically to maintain its efficiency.

Question 8

Question
In order to reduce erosion on steep hillsides, farmers
Answer
  • plant on terraces
  • plant a shelterbelt
  • use soil from the O-Horizon.
  • do not irrigate.

Question 9

Question
Acid mine drainage is pollution caused when
Answer
  • the acidity of metals in mines exceeds level 9 on the pH scale.
  • a buildup of residual acidity in solid destroys large areas of vegetation.
  • dissolved toxic materials wash from mines into nearby lakes and streams.
  • water, wind or ice erodes the overburden forming erosion drainage channels.

Question 10

Question
More than 60% of US land is owned by
Answer
  • the Federal government
  • state and local governments
  • native american tribes
  • private citizens, corporations and nonprofit organizations

Question 11

Question
The most serious problem facing global forests today is:
Answer
  • deforestation
  • high concentration of CO2 in the atmosphere
  • rapid expansion of forest ecosystems
  • increasing biodiversity

Question 12

Question
Most US national forests are managed by the
Answer
  • US geological survey
  • national parks service
  • fish and wildlife service
  • us forest service

Question 13

Question
Rangeland is land that
Answer
  • forms a plateau
  • is intensively managed
  • has grasses and shrubs as the predominant vegetation
  • is used for growing food crops

Question 14

Question
Desertification is when
Answer
  • resources are extracted from public lands without compensating taxpayers.
  • deserts receive irrigation to form oasis
  • once-fertile rangeland is degraded into nonproductive desert.
  • unrestricted development is allowed in wetlands

Question 15

Question
The primary purpose of a conservation easement is to
Answer
  • set aside protected zones for wildlife sanctuaries.
  • limit the number of livestock allowed to graze on rangelands.
  • receive fair market value for resources mined in privately owned forests.
  • protect privately owned forest from development for a specified number of years.

Question 16

Question
Which federal agencies administer public rangelands?
Answer
  • U.S geological Survey and Fish and Wildlife Service
  • Bureau of Land Management and US Forest Service
  • National Parks Service and Department of the interior
  • Environmental Protection Agency and Wise-use movement.

Question 17

Question
The National Parks Service currently administers ___ national parks.
Answer
  • 28
  • 58
  • 108
  • 388

Question 18

Question
A protected area of land in which no human development is permitted is termed
Answer
  • mountain corridor.
  • wise-use rangeland.
  • permanent pasture.
  • wilderness.

Question 19

Question
The goals of the wise-use movement include all of the following except
Answer
  • timber management of old-growth forests.
  • mining of managed areas.
  • selling parts of resource-rich federal lands.
  • selling the ecosystem services of wetlands.

Question 20

Question
Which of the following are considered the three top endangered ecosystems in the U.S.?
Answer
  • Hawaiian coastline, rainforest, and alpine Aeolian ecosystems.
  • Northern Washington scrubland, cave systems, and grasslands
  • South Florida landscape, Southern Appalachian spruce-fir forests, Longleaf pine forests and savannas
  • California river, stream. and wetland communities.

Question 21

Question
Which of the following is NOT a criterion used to evaluate whether an ecosystem is endangered?
Answer
  • property value of the land
  • prospects for future loss or degradation
  • the area the ecosystem occupies
  • number of endangered species living in the ecosystem.

Question 22

Question
Sub-Saharan Africa currently produces less food per person than it did in 1950, which means:
Answer
  • food insecurity has increased.
  • the population suffers from overnutrition.
  • environmental quality has improved.
  • less food is grown than in 1950.

Question 23

Question
A form of intensive subsistence agriculture that involves growing a variety of plants on the same field simultaneously is termed ___.
Answer
  • nomadic farming
  • shifting cultivation
  • monoculture
  • intercropping

Question 24

Question
Farmers and ranchers strive to increase yields by administering ___ to livestock.
Answer
  • hormones and antibiotics
  • broad-spectrum vitamins
  • sawdust filler in feed
  • artificial sunlight

Question 25

Question
What was the main purpose of the green revolution when it began in the middle of the 20th century?
Answer
  • to promote organic agricultural techniques.
  • to maximize polyculture in every field.
  • to redistribute farmland so every person would have the means to produce his or her own food.
  • to increase crop yields in order to eliminate famine.

Question 26

Question
Clearing grasslands and forests to grow crops results in habitat fragmentation that
Answer
  • increases biological diversity.
  • reduces biological diversity.
  • has no effect on biological diversity.
  • reduces the potential productivity of land.

Question 27

Question
___ agriculture uses methods that maintain soil productivity and a healthy ecological balance while minimizing long-term impacts.
Answer
  • Subsistence
  • Sustainable
  • Industrialized
  • Green revolution

Question 28

Question
Broad-spectrum pesticides
Answer
  • kill beneficial organisms in addition to the targeted pest.
  • are non-mobile and cannot contaminate runoff.
  • are readily broken down into safe materials such as water and CO2.
  • are ineffective.

Question 29

Question
Insecticides, herbicides, rodenticides, and fungicides are all examples of
Answer
  • pesticides, chemicals intended to kill organisms that reduce crop yields.
  • monocultures, techniques that reduce biodiversity in agriculture.
  • pheromones, hormones that decrease fertility of undesirable species.
  • irradiation, ionizing radiation that sterilizes soil.

Question 30

Question
One problem associated with pesticide use is bioaccumulation which is the
Answer
  • development of resistance to particular combinations of pesticides.
  • buildup of a persistent pesticide in an organism’s body.
  • increase in strength of a pesticide over time making it more lethal.
  • mobility of pesticides showing up in places where they were not applied.

Question 31

Question
A type of intercropping in which several kinds of plants that mature at different times are planted together is called ___.
Answer
  • interspersed monoculture
  • nomadic farming
  • shifting cultivation
  • polyculture
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