Sources Of Energy

Which among the following is not a renewable source of energy?

Which of the following is a disadvantage of most of the renewable energy sources?

Photovoltaic energy is the conversion of sunlight into:

The outermost layer of the earth is:

Common energy source in Indian villages is:

Fuel formed under the earth’s surface by the decomposition of organic matter is called ______.

Which of the following causes the least pollution when burnt

Which of the following causes the least pollution when burnt

The main constituent of LPG is ______.

The main constituent of CNG is _____

Which of these is not a renewable source of energy?

The radiations absorbed by ozone layer are ______.

A solar cell is made up of ______.

A solar cell converts ______.

Floating generators are used in the sea to harness ______.

Wind is beneficial resource of energy as it doesn’t cause

Earth emits heat by eruptions of

Plants material and waste from living things are regarded as

Trapped heat inside the earth is known as

The energy resources which would not run out are called

Choose the incorrect statement regarding wind power:

1.  It is expected to harness wind power to minimum in open space.
2.  The potential energy content of wind blowing at high altitudes is the source of wind power.
3.  Wind hitting at the blades of a windmill causes them to rotate. The rotation thus achieved can be utilized further
4.  One possible method of utilizing the energy of rotational motion of the blades of a windmill is to run the turbine of an electric generator.

Acid rain happens because:

1.  Sun leads to heating of upper layer of atmosphere.
2.  Burning of fossil fuels release oxides of carbon, nitrogen and sulphur in the atmosphere.
3.  Electrical charges are produced due to friction amongst clouds.
4.  Earth atmosphere contains acids.

In a hydro power plant ?

1.  Potential energy possessed by stored water is converted into electricity.
2.  Kinetic energy possessed by stored water is converted into potential energy.
3.  Electricity is extracted from water.
4.  Water is converted into steam to produce electricity.

Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilization?

1. Nuclear energy
2. Thermal energy
3. Solar energy
4. Geothermal energy

Ocean thermal energy is due to ?

1. Energy stored by waves in the ocean
2. Temperature difference at different levels in the ocean
3. Pressure difference at different levels in the ocean
4. Tides arising out in the ocean