Minerals and Energy Sources Flashcards

memorize

1
Q

the source of many important commodities, such as copper and gold, used by our society, but it is important to realize that mineral deposits are a nonrenewable resource

A

Mineral deposits

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2
Q

Two cycles determine how mineral deposits are formed

A

the rock cycle and the tectonic cycle

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3
Q

refers to the process by which the Earth’s crust is formed
and moved.

A

Plate Tectonics

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4
Q

where new crust is generated as the plates pull away
from each other.

A

Divergent boundaries

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5
Q

where crust is destroyed as one plate dives under
another.

A

Convergent boundaries

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6
Q

where crust is neither produced nor destroyed as the
plates slide horizontally past each other.

A

Transform boundaries

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7
Q

broad belts in which boundaries are not well defined
and the effects of plate interaction are unclear.

A

Plate boundary zones

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8
Q

is the study of the planet Earth

A

Geology

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9
Q

involves searching for favorable mineral deposits
using the physical properties of rocks, such as magnetic intensity and electrical
conductivity.

A

Geophysical exploration

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10
Q

may include aeromagnetic or gravity
surveys, ground-penetrating radar studies, or the use of seismic waves to show
contrasting rock types.

A

Geophysical investigations

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11
Q

is the study of the distribution and amounts of elements in
minerals, ores, rocks, soil, water, and the atmosphere and the study of the
circulation of the elements in nature on the basis of the properties of their atoms
and ions.

A

Geochemistry

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12
Q

commonly include soil sampling, stream sediment sampling, and rock sampling; even plants are also sampled in some
studies.

A

Geochemical investigations

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13
Q

has become a valuable tool for exploration
geologists.

A

use of satellite imagery

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14
Q

is the capacity of a physical system to perform work

A

Energy

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15
Q

is derived from natural processes that are replenished
constantly such as solar, wind, ocean, hydropower, biomass, geothermal
resources, and biofuels and hydrogen.

A

Renewable energy

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16
Q

the primary source of energy

A

Sun

17
Q

is a clean, renewable source of
energy

A

Sunlight

18
Q

can be used to generate electricity

A

Solar Energy

19
Q

solar radiation gets converted into DC electricity directly.

A

Solar Photovoltaic
(SPV) cells

20
Q

the natural movement of air across the land or sea.

A

Wind

21
Q

is an important source of energy accounting for about one third of the
total fuel used in our country and in about 40% of the rural households.

A

Biomass

22
Q

are predominantly produced from biomass feed stocks or as a by-
product from the industrial processing of agricultural or food products, or from
the recovery and reprocessing of products such as cooking and vegetable oil.

A

Biofuels

23
Q

in the sea are sources of energy.

A

flowing water and tides

24
Q

cover 70 percent of the earth’s surface and represent an enormous
amount of energy.

A

Oceans

25
Q

Ocean energy is mostly
exploited by just a few technologies:

A

Wave, Tidal, Current Energy and Ocean
Thermal Energy.

26
Q

occurs every 12 hours due to the gravitational
force of the moon.

A

tidal cycle

27
Q

is generated by the movement of a device
either floating on the surface of the ocean or moored to the ocean floor.

A

Wave Energy

28
Q

is ocean water moving in one direction.

A

Marine Current/Gulf Stream

29
Q

uses ocean temperature differences from the surface to
depths lower than 1,000 meters, to extract energy.

A

Ocean Thermal Energy Conversion (OTEC)

30
Q

is heat stored in earth crust and being used for electric
generation and also for direct heat application.

A

Geothermal Energy

31
Q

literally means heat
generated by earth.

A

Geothermal

32
Q

are the non-renewable sources of energy.

A

Coal, Oil and Natural gas

33
Q

are the predominantly used energy sources today.

A

Fossil Fuels

34
Q

the third largest producer of coal in the world

A

India