3. A natural resource is anything that people can use which comes from nature. People do not make natural
resources, but gather them from the earth. Examples of natural resources are air, water, wood, oil, wind
energy, hydro- electric energy, iron, and coal. Refined oil is not a natural resource because people make it.
Natural resources are of two main types. They are Renewable & Non renewable resources.
NATURAL RESOURCES
RENEWABLE RESOURCES:-
Renewable resources are natural resources that can bere plenished in a short period of time. e.g of
renewable resources are:
Oxygen:-As we all know human being and animals use oxygen for breathing , and plants release oxygen,
hence according to definition of renewable resources oxygen is being replenished so it is a renewable
resource.
Wood:-Wood grows naturally and is renewable. we use wood for various purposes and it can grow again
for re-use and hence it is kind of a renewable resource. Example: timber.
Water:-Water continually moves throughout the planet, with each climate receiving its own kind and
volume of precipitation. If community over uses water, the source contemporarily run out, but it will come
4.
5. Types of renewable resources
Solar energy
• Solar energy is the energy derived from the sun through the form of
solar radiation
• The Sun is a powerful source of energy that provides the Earth with as much energy every hour as we
collectively use in a year worldwide.
• Heat (hot water, building heat, solar cooking)
• Electricity generation (photovoltaics and solar thermal, Stirling and other heat engines)
• Desalination of seawater (taking the salt out so it can be used for drinking or growing crops).
• Lightning
6. Wind energy
• Wind power is using the energy of Wind has been used since ancient times to move ships, and for
hundreds of years to pump water or grind corn and grain into flour, now it is usually changed into
electricity using wind turbines.
• Wind energy is believed to be five times total current global energy production, or 40 times current
electricity demand.
• This could require large amounts of land to be used for wind turbines, particularly in areas of higher
wind resources.
7. Hydropower
• Hydro power is the energy derived from the falling water or running water.
• Falling water is channeled through water turbines.
• The pressure of the flowing water on turbine blades rotates a shaft and drives an electrical generator,
converting the motion into electrical energy.
• But hydroelectric power doesn't necessarily require a large dam. Some hydroelectric power plants just
use a small canal to channel the river water through a turbine.
8. NON RENEWABLE RESOURCES
Non renewable resource is a natural resource that can not be re made or regrow at a scale comparable to its
consumption e.g of Non-Renewable Resources
• Coal:- coal is used as a fuel, it takes millions of years to regenerate it, so once we dig it all up, and, burn it, finished.
it does not renew itself every day. If some how, a community uses, coal at a large scale comparable to its
consumption. it will run out, and will have to wait for a long time, so that it will regenerate for use, which is
practically impossible, so it is considered as non-renewable resource.
• Petroleum:- This type of resources are resources for which there is a limited supply. So, The supply of petroleum
comes from the Earth itself and, as it typically takes millions of years to develop and is finite.
• Natural gas:-Natural gas is the result of decomposing plants and animals that were trapped beneath rock millions of
years ago. So once its used it takes a millions of time to regenerate, so it is a non-renewable resource. For example:
Liquefied Petroleum Gas(LPG).
9. NATURAL GAS
• Natural gas is a fossil fuel formed when layers of buried plants, gases, and animals are exposed to intense
heat and pressure over thousands of years.
• The energy that the plants originally obtained from the sun is stored in the form of chemical bonds in
natural gas.
• It is primarily composed of methane, but contains ethane, propane and butane as well.
• Once drillers extract natural gas, processing plants remove the propane and butane for use as liquefied
petroleum gas (LPG), a household and industrial fuel.
• According to the current usage statistics and the volume of world reserves, the supply of natural gas
should last another century.
10. NUCLEAR ENERGY
• Nuclear power, or nuclear energy, is the use of exothermic nuclear processes, to generate useful heat and
electricity.
• The term includes nuclear fission, nuclear decay and nuclear fusion.
• Presently the nuclear fission of elements in the actinide series of the periodic table produce the vast
majority of nuclear energy in the direct service of humankind.
• In nuclear fission, neutrons smash into the nucleus of Uranium atoms and release energy in the form of
heat. Water is converted to steam by this heat and it is used to drive the turbines.
• Nuclear (fission) power stations, excluding the contribution from naval nuclear fission reactors, provided
about 5.7% of the world's energy and 13% of the world's electricity in 2012.
11.
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13.
14. You can directly contribute by :-
• By switching of lights when not required.
• Using refills instead of buying a new pen.
• Buying materials in bulk/without packing .
• By growing plants.
• By being vegetarian also you save energy .
• By encouraging foods made of jowar, bajra, instead of rice.
• By not wasting food.
• By using CFL bulbs or tubes.
15. You save energy and protect the environment
when you use
• DIGITAL CAMERAS
• LCD MONITORS
• LNG OR CNG OR HYBRID OR ELECTRIC VEHICLES
• MECHANICAL PENCILS
• RECYCLED PAPER FOLDERS/PRODUCTS
• OIL LAMPS INSTEAD OF WAX CANDLES
• COPPER BOTTOMED STAINLESS STEEL UTENSILS
