1 Answers
Option 2 : It gives a minimum amount of work per unit volume or mass
Explanation:
The characteristics of a good source of energy.
- It would do a large amount of work per unit volume or mass.
- It is easily accessible.
- It is easy to store or transport.
- It is economical.
There are basically two sources of energy:
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Renewable resources or Non-Conventional |
Non-Renewable resources or Conventional |
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The resources can renew themselves or can be used again and again. |
The sources cannot be replaced or reused once they are destroyed. |
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Renewable resources are replenished naturally and over relatively short periods of time. It is present in unlimited quantity |
These are limited resources and consume millions of years to make. So these are used limitedly. |
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It has low carbon emission and is hence is environment friendly. |
These are not environmentally friendly because the amount of carbon emission is high. |
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The cost is low. |
The cost of these resources is high. |
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A large land area is required for the installation of these plants. |
Less land requirement of installation of these plants. |
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They require high maintenance costs. |
They require low maintenance costs. |
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Example: soil, water bodies, sun (solar energy), wind, tidal energy, atomic energy, geothermal, forest, mountains, biogas, wildlife, atmospheric resources. |
Example: coal, oil, nuclear energy, petroleum, natural gas, LPG, batteries, shale gas, soil and phosphate are some examples. |