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Home/ Questions/Q 1033
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Samika Sharma
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Samika Sharma
Asked: October 30, 20202020-10-30T04:25:22+00:00 2020-10-30T04:25:22+00:00In: Class 10

Compare and contrast fossil fuels and the Sun as direct sources of energy.

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NCERT Solution for Class 10 Science Chapter 14
Sources of Energy
NCERT Books for Session 2020-2021
CBSE Board and UP Board
Exercises Questions
Page No-255
Questions No-4

2020-2021cbsechapter 14class10ncertsciencesources of energy
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    1. Physics Solution
      2020-12-06T11:05:49+00:00Added an answer on December 6, 2020 at 11:05 am

      • Fossil fuels are energy sources, such as coal and petroleum, obtained from underneath the Earth’s crust. They are directly available to human beings for use. Hence, fossil fuels are the direct source of energy. These are limited in amount. These are non-renewable sources of energy because these cannot be replenished in nature. Fossil fuels take millions of years for their formation. If the present fossil fuel of the Earth gets exhausted, its formation will take several years. Fossil fuels are also very costly.
      • On the other hand, solar energy is a renewable and direct source of energy. The Sun has been shining for several years and will do so for the next five billion years. Solar energy is available free of cost to all in unlimited amount. It replenishes in the Sun itself.

      For more answers visit to website:
      https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

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    2. Taruna
      2021-02-01T09:00:05+00:00Added an answer on February 1, 2021 at 9:00 am

      Fossil fuels are obtained from the earth’s crust as they are the remains of the dead plants and animals. They are similar to coal and petroleum and readily available for use. These are non-renewable source of energy and cannot be replenished.

      Whereas solar energy is abundant in nature and can be replenished.

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    3. Tulika
      2021-02-10T08:13:17+00:00Added an answer on February 10, 2021 at 8:13 am

      Sun is the direct source of energy, while fossil fuels are formed because of the solar energy stored in them. When green plants prepare food, they convert the solar energy into chemical energy which is stored in the form of biomass. The same biomass gets transferred to the animals. Thus, the energy in the form of biomass which is stored in fossil fuels has come from the sun.

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