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Renewable Resources
These are the resources that get renewed or replenished quickly. For
example, air, water, sunlight, etc.
Water: Only about 2.5 % of water on earth is fresh water. Energy Solar Energy
from rivers is used to make electricity. Energy produced by tides in
sea and oceans can also be converted into electricity.
Hydropower Energy Biomass Energy
Sun: Sun’s energy or solar power can be used to generate electricity.
This energy is used in calculators, street lamps and even in room Energy
heaters and water heaters. The Fuel of Life
Wind: The energy from the force of wind is called wind energy. This
energy can be used for grinding grains, pumping water, etc. This Geothermal Energy Wind Energy
energy can also be converted to electricity.
Biomass: Energy can be produced from wastes of plants and animals. It can be used for cooking. It can also
be used to produce electricity and heat.
Soil: Nutrients in the soil helps plants to grow. Soil is used to provide shelter. Soil quality gets damaged
due to addition to harmful chemicals, land pollution, construction activities and cutting down of trees.
Forests: Forests are necessary to preserve ecology. They play an important role in providing clean air and
attracting rain clouds. They also provide food, gum, rubber, wood and plants with medicinal value.
Non-renewable Resources
These are those resources which have a limited stock. Once the stocks is exhausted, it may take thousands of
years to be renewed or replenished. For example, coal, petroleum and other mineral resources.
Coal: Coal is one of the cheapest sources of fuel. It is used in power houses, factories and houses for
cooking and heating.
Petroleum: It includes petrol, diesel and mineral oils. It is used to run motor vehicles, furnaces and power-
houses.
LPG: Liquefi ed Petroleum Gas (LPG) is made from
petroleum gas. LPG is used for cooking and also for
running vehicles.
Natural Gas: It is formed by decomposition of dead
animals and plants that are buried under lakes and oceans. Fossil Fuel Oil
It is found above the oil in oil wells. Compressed Natural Coal
Gas (CNG) is used for running vehicles.
Nuclear Plants: Nuclear energy is made available to us
through nuclear power plants. Nuclear energy is becoming
a common source of electricity throughout the world Energy
despite the fact that it has the danger of causing great harm The Fuel of Life
in case of an accident.
Minerals: The earth contains minerals like gold, bauxite, Nuclear Natural Gas
mica, iron-ore and many others. They are reducing, as
larger and deeper mines are being dug to obtain these minerals. Mining these minerals causes damage to
the earth.
Practices for Conservation of Resources
For most of us, conservation of natural resources means hoarding or controlling the supply of these resources
in such a way that a part of it is left for the future. This is not a correct approach. Conservation is a holistic
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