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प्रश्न
State whether the following is True or False.
Coal takes millions of years to form.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Name two energy sources that you would consider to be renewable. Give reasons for your choices.
Fill in the following blank with a suitable word:
The amount of heat produce by burning a unit mass of a fuel completely is known as its ............ value.
What is the difference between a renewable and a non-renewable source of energy? Explain with examples.
Name two sources of energy which you consider to be non-renewable. Give reason for your choice.
Write the full forms of CNG and LPG.
State one important use of CNG these days.
Write a short note on the pollution caused by burning fossil fuels.
Fill in the following blank with suitable word:
Tidal waves build up and recede ........... a day.
Fill in the blank
Solar cells use the power supplied by the ______.
Choose the correct answer.
The coal that has the highest percentage of carbon is
What is the main difference between renewable and non-renewable energy resources?
Who is the odd one out?
Why is charcoal considered better fuel than wood?
Tidal energy is ______ type of energy.
Higher Order Thinking Skill (HOT)
What are the objectives for replacing non-conventional energy resources from conventional energy resources?
What is non-renewable resources?
Why is there a need to harness non-conventional sources of energy? Give two main reasons.
What are the environmental consequences of using fossil fuels? Suggest the steps to minimise the pollution caused by various sources of energy including non-conventional sources of energy.
Air is a natural resource and cannot be exhausted by human activities. It is known as inexhaustible natural resource. Which of the following is another inexhaustible natural resource?
