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प्रश्न
Why using wood as fuel is not advisable although wood is a renewable source of energy?
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उत्तर
It is not advisable to use wood as fuel even though it can be replenished because the burning of wood produces smoke that causes pollution which results in environmental imbalance.
संबंधित प्रश्न
Write true or false of the following statement.
The energy of flowing water can be converted into electric energy (electricity).
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
Select the renewable and non-renewable sources of energy from the following:
Diesel
What is solar energy?
State two disadvantages of using nuclear energy for producing electricity.
A pebble is thrown up. It goes to a height and then comes back on the ground. State the different changes in form of energy during its motion.
State the energy changes which take place when:
A battery lighting up a bulb.
Two bodies, A and B of equal mass are kept at heights 20 m and 30 m respectively. Calculate the ratio of their potential energies.
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
What is meant by energy?
