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प्रश्न
Choose the correct answer.
Windmills have been used for many centuries in
पर्याय
the USA
the Netherlands
Russia
India
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उत्तर
Windmills have been used for many centuries in the Netherlands
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संबंधित प्रश्न
Classify the following into renewable and non-renewable sources of energy:
Coal, Wind, Tides, Petroleum,Wood, Natural gas
Classify the following
Coal, Wind, Tides, Petroleum,Wood, Natural gas
What is the basis of above classification?
Which of the following fuels has the highest calorific value?
(a) natural gas
(b) methane gas
(c) hydrogen gas
(d) biogas
Name any four fractions obtained from petroleum which are used as fuels.
Name the component which is found in natural gas well as in biogas.
Write a short note on the pollution caused by burning fossil fuels.
What are fossil fuels? Give three examples of fossil fuels.
Fossil fuels are energy rich compounds of an element X which were originally made by the plants with help of sun's energy.
Name another element which is usually found in combination with X in fossil fuels.
A substance X is added to LPG cylinders while filling so as to make the detection of leakage of LPG from the cylinder easy.
Name the substance X.
A substance X is added to LPG cylinders while filling so as to make the detection of leakage of LPG from the cylinder easy.
How does substance X make the detection of leakage of LPG easy?
Compare the sun and the fossil fuels as the sources of energy.
State whether the following statement is true or false:
Tidal energy is one of the forms in which solar energy manifests itself in oceans.
What are the two ways in which cow-dung can be used as a fuel? Which of them is better and why?
Who is the odd one out?
State the main difference between the renewable and non-renewable sources of energy.
Explain why is it no wise to regard wood as a renewable sources of energy.
Why is there a need to harness non-conventional sources of energy? Give two main reasons.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Nutsgilh is an example of inexhaustible natural resources.
Why petrol is exhaustible natural resource, whereas sunlight is not? Explain.
