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8th Grade Earth Science Energy & Mineral Resources Flashcards | StudBud
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8th Grade Earth Science Energy & Mineral Resources
8th Grade Earth Science Energy & Mineral Resources
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Answers
1
Which of these is NOT a source of biomass energy?
Gangue
Garbage
Wood
Alcohol
2
Electricity produced by water power.
Hydroelectric
Wind Energy
Geothermal
Nuclear Energy
3
Which of these is NOT inexhaustible?
Water
Wind
Biomass
Geothermal
4
Energy from hot magma.
Solar Energy
Hydroelectric
Geothermal
Nonrenewable
5
Oil, natural gas, and coal are all examples of _______.
Biomass Energy
Inexhaustible Resources
Renewable Resources
Fossil Fuels
6
When the nucleus of a heavy element is split and energy is released.
Fission
Ore
Fusion
Solar energy
7
Which of these is NOT a disadvantage of solar energy?
Does not work at night
It is difficult to store the energy
It is inexhaustible
Less effective when cloudy
8
A large number of wind turbines generating electricity.
Wind Farm
Hydroelectric Plant
Tidal Collectors
Wind Energy Plant
9
Which of these is a problem associated with using trees/wood as an energy resource?
Difficult to store the energy
Nonrenewable
Pollutes water
Air pollution
10
Large enough amount of a mineral that it can be mined at a profit.
Ore
Aggregate
Gangue
Resource
11
Materials of low mass are fused together to form a substance of higher mass.
Nonrenewable
Solar
Fusion
Fission
12
These are compounds containing hydrogen and carbon atoms.
Synthetic Fuels
Gasohol
Proteins
Hydrocarbons
13
Waste rock that must be removed before a mineral can be used.
Gangue
Ore
Hydrocarbons
Aggregate
14
Stable molecules that contain carbon and are formed below sea level.
Carbohydrates
Ethanol
Fossil Fuels
Methane Hydrates
15
Which of these is true of inexhaustible energy?
They are used faster than they are replenished
They can not be used up
They cannot be replaced within a human lifetime
They can be replaced within a human lifetime
16
Which of these is a mineral used as a building material?
Garnet
Limestone
Corundum
Gangue
17
Energy from burning organic material.
Gangue
Biomass
Hydroelectric
Nuclear
18
What is the fuel for nuclear fission?
Uranium
Hydrocarbons
Methane hydrates
Hydrogen
19
Nuclear waste remains radioactive for how many years?
100,000 years
10,000 years
1,000 years
FOREVER
20
This is composed of crushed stone or gravel and sand and has many uses in the building industry.
Hydrocarbons
Gangue
Aggregate
Ore
21
This is the most abundant fossil fuel in the world.
Natural Gas
Wood
Biomass
Coal
22
A chemical process that removed unwanted elements from the metal being processed
Smelting
Refining
Aggregate
Gangue
23
Nuclear fission is considered which type of resource?
Nonrenewable
Biomass
Renewable
Inexhaustible
24
The term biomass is derived from what two words?
Living & Mass
Biology & Mass
Biological & Mass
Biological & Massive
25
Which of these is not an example of a fossil fuel?
Natural Gas
Alcohol
Oil
Coal