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CBSE Questions for Class 8 Geography Mineral And Power Resources Quiz 3 - MCQExams.com
CBSE
Class 8 Geography
Mineral And Power Resources
Quiz 3
Geothermal energy is the thermal energy present ________.
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On the surface of the earth
0%
In the interior of the earth
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On the surface of the ocean
0%
None of these
Explanation
Geothermal energy refers to the heat and electricity produced by using the heat from the interior of the Earth.
Geothermal energy refers to the heat and electricity produced by using the heat from the interior of the Earth. Groundwater in such areas absorbs heat from the rocks and becomes hot. It is so hot that when it rises to the earth’s surface, it turns into steam. This steam is used to drive turbines and generate electricity.
Which of the following is a Geothermal resource?
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Hydrothermal
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Hot dry rock
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Geopressurised
0%
All of the above
Explanation
Geothermal energy refers to the heat and electricity produced by using the heat from the interior of the Earth. Groundwater in such areas absorbs heat from the rocks and becomes hot. It is so hot that when it rises to the earth’s surface, it turns into steam. This steam is used to drive turbines and generate electricity.
The energy posses by moving air is called ______.
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tidal energy
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kinetic energy
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wind energy
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mechanical energy
Explanation
Mechanical energy is the energy possessed by any object either in motion or in rest. The energy possessed by an object in motion is Kinetic energy and in rest is Potential energy.
The energy which can be harnessed from moving air is known as wind energy.
Tidal energy can be harnessed from the tides and waves of the sea.
Geothermal is the ____ energy contained in the rock and fluid that fills the fractures and pores within the rocks in the earth's crust.
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Nuclear
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Heat
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Solar
0%
Wind
Explanation
Geothermal energy refers to the heat and electricity produced by using the heat from the interior of the Earth. Geothermal energy exists because, the Earth grows progressively hotter with increasing depth.
The plants which use cattle dung are called ________.
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Thermal Power Plant
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Gobar Gas Plant
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Geothermal Plant
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Compost Plant
Explanation
Gobar Gas plant,
Organic input materials such as foodstuff remnants, fats or sludge can be fed into the biogas plant,
the substrate is decomposed by the micro organisms under exclusion of light and oxygen. The final product of this fermentation process is biogas with methane as the main ingredient. But aggressive hydrogen sulphide is also contained in the biogas.
The residues can be utilised as high quality fertiliser.
The biogas generated is stored in the roof of the tank and from there it
is burned in the combined heat and power plant (CHP) to generate electricity and heat. T
he heat generated can be utilized to heat building or to dry wood or harvest products.
Which of the following are non conventional energy resource?
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Solar energy
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Bio-gas
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Wind energy
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All of the above
Explanation
Renewable energy sources like solar energy, wind, tide, biomass and energy from waste material. These are called nonconventional energy sources. India is blessed with an abundance of sunlight, water, wind and biomass.
Geothermal energy may serve as an important source of energy in _________.
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The Konkan Coast
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Ladakh District
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Aravalli Hills
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Narmada Valley
________ is a non conventional form of energy made from agriculture waste.
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Heat energy
0%
Solar energy
0%
Bio mass energy
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Light energy
Explanation
Biomass is a kind of non conventional energy. It is a form of energy made from agricultural waste. Biomass is organic material that comes from plant and animal. It contains stored energy from the Sun.
Geothermal energy is basically
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Non-renewable
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Renewable
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Biotic
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Non-cyclic
Explanation
Geo-thermal energy is Renewable energy. It is heat energy generated and stored in the earth.
Under which of the following type of resource can tidal energy be put?
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Replenishable
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Abiotic
0%
Human-made
0%
Non-recyclable
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None of these
Explanation
As per the definition, a
Replenishable energy
source is something that can be built up again.
Tidal energy
is formed by
tides
of oceans/seas. As these
tides
can be formed again, so can be
Tidal energy
. Thus, it is a
Replenishable resource
.
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