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प्रश्न
Most of the sources of energy that we sue represent stored solar energy. Which of the following is not ultimately derived from the sun's energy?
(a) wind energy
(b) geothermal energy
(c) fossil fuels
(d) biomass
उत्तर
geothermal energy
Geothermal energy is the heat energy from the hot rocks present inside the earth and does not come directly or indirectly from the sun's energy
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संबंधित प्रश्न
What is meant by a renewable source of energy? Give two examples of renewable sources of energy.
What are the various steps which can be taken to control (or reduce) pollution caused by burning fossil fuels?
Why is LPG considered a good fuel?
The aviation fuel which is used in the engines of jet aeroplanes is:
(a) diesel
(b) kerosene
(c) petrol
(d) CNG
The world's known coal reserves are expected to last for about:
(a) 200 years
(b) 400 years
(c) 500 years
(d) 100 years
State whether the following is True or False.
Coal takes millions of years to form.
Who is the odd one out?
Why is charcoal considered better fuel than wood?
Choose the odd one:
Various materials which are obtained from nature are called natural resources. Which of the following is not a natural resource?
