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EarthScience > Earth Resources- Grp.3 > Flashcards

Earth Resources- Grp.3 Flashcards

(70 cards)

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1
Q

Materials that organisms need; some can be replaced and others cannot.

A

Resources

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2
Q

Natural resource that can be replaced by nature as quickly as it is used up.

A

Renewable Resource

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3
Q

Resources produced by the earth.

A

Natural resources

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4
Q

Replacement of renewable resources at the same rate at which it is used up.

A

Sustainable yield

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5
Q

Resource that exists in a fixed amount, replacement via geological, chemical, and physical processes that take millions of years.

A

Nonrenewable resource

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6
Q

Different places have different resources.

A

Distribution of resources

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7
Q

Provides places for organisms to live and interact. Spaces for the growth of forests and grassland habitats.

A

Land resources

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8
Q

42% US land is protected.

A

Protected land

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9
Q

Provide scenic landscapes and protect wildlife habitats and wilderness areas.

A

National parks

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10
Q

Provide protection of habitats and breeding areas for wildlife especially endangered species.

A

National wildlife refuges

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11
Q

Takes thousands of years to form but minutes to disappear via erosion.

A

Soil

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12
Q

Loss of topsoil in arid regions.

A

Desertification

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13
Q

Mixture of gravel, sand and crushed stone than naturally accumulates near the earth’s surface.

A

Aggregates

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14
Q

Solid rock made of limestone, granite, marble or other rocks mined in quarries.

A

Bedrock

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15
Q

Natural resource that can be mined for a profit.

A

Ores

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16
Q

Minerals crystallize and settle to the bottom of a cooling body of magma SOURCE OF ORE.

A

Settling of crystals

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17
Q

Occur along faults and veins SOURCE OF ORE.

A

Hydrothermal Vein

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18
Q

SOURCE OF ORE manganese and iron.

A

Chemical precipitation

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19
Q

Sand and gravel bars that contain heavier sediments such as gemstones and oxide pebbles SOURCE OF ORE.

A

Placer deposits

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20
Q

Material left behind from ore extraction.

A

Tailings

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21
Q

Rain washed CO2 into oceans and early life released O2 via photosynthesis.

A

Origin of oxygen

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22
Q

Conversion of carbon dioxide into carbohydrates by plants during photosynthesis.

A

Carbon cycle

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23
Q

Vital for proteins, movement of nitrogen from the atmosphere to the soil and living organisms.

A

Nitrogen cycle

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24
Q

Substance that enters earth’s geochemical cycles and can harm the well being of living things.

A

Pollutant

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25
AIR POLLUTION SOURCE (List Three)
Volcanoes, Fire, Randon
26
Has a high boiling point, can store large amounts of heat energy, and can dissolve compounds.
Liquid water
27
Lower density, floats on liquid water.
Solid water
28
Used for agriculture and drinking.
Freshwater
29
Dams, transporting surface water, groundwater, desalination.
Ways to manage freshwater
30
Earth’s main energy source.
Sun
31
Total amount of living matter in an ecosystem.
Biomass
32
Fuel from biomass.
Biomass fuels
33
Poorly drained areas with spongy, wet ground that accumulates peat.
Bogs
34
Low cost efficient biofuel found in bogs.
Peat
35
Incomplete decomposition of organic matter formed over millions of years.
Fossil fuels
36
Most abundant fossil fuel, compression of peat over millions of years.
Coal
37
Formed from microscopic organisms from the oceans pumped out of the ground then refined into various products, migrates sideways then upwards and ending up in limestone and sandstone.
Petroleum and natural gas
38
Gathered via passive methods (concrete) and active methods (solar panels) from the sun.
Solar energy
39
Structure made of two layers of silicon that converts solar energy into electricity.
Photovoltaic cells
40
Generated from the controlled flow of water via turbines or waves made by wind.
Hydroelectric power
41
Energy from earth’s internal heat.
Geothermal energy
42
Converts wind energy into electrical energy.
Wind turbines
43
Energy from nuclear fission, splitting heavy nuclei into smaller ones.
Nuclear fission
44
Fuel sources made from biomass(ethanol from fermented crops) ie biodiesel.
biofuels
45
Highest energy resource consumption sources.
Petroleum, natural gas, coal
46
Amount of work produced compared to the energy used.
Energy efficiency
47
Two forms of energy generated at once, secondary energy such as heat is captured for domestic or industrial use.
Cogeneration
48
Global management of earths natural resources to meet current and future energy needs.
Sustainable energy
49
Resources needed by organisms
Air, food, water, and shelter
50
Increase in pop. over time.
Population growth
51
Pattern where a pop. grows faster as it increases in size.
Exponential growth
52
How many organisms an environment can sustain given its resources.
Carrying capacity
53
Pop. at the carrying capacity for its environment.
Equilibrium
54
Environmental factors that do not depend on pop. size (storms and fires).
Density independent factors
55
Environmental factors dependent on population(disease, predators, competition).
Density dependent factors
56
Restoring land to its original contours and plant vegetation.
Reclamation
57
Subsurface mining; used for minerals deep underground.
Underground mining
58
Removal of trees from a forested area without adequate replanting.
Deforestation
59
Causes loss of habitats.
Urban development
60
1.5 kilograms of solid waste a day.
Average US citizen
61
Use of organisms to break down toxic waste.
Bioremediation
62
Increase in average global temperature.
Global warming, Impacts of air pollution
63
Forms from car exhaust in sunlight.
Photochemical smog
64
Ozone layer is reduced.
Ozone depletion
65
Sulfur dioxide and nitrogen oxides mixing with atmospheric moisture to form acid rain.
Acid precipitation
66
Devices that capture particulate matter, removing older high pollution vehicles.
Methods for reducing air pollution
67
When there is not enough water, people either have to find new sources or decrease demand.
Water conservation
68
Pollution from one source.
Water pollution point source
69
Pollution from widespread areas.
Water pollution nonpoint source
70
Passed in 1974 in US to ensure access to safe drinking water.
Safe drinking water act

EarthScience (5 decks)

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