NATURAL RESOURCES Natural resources are material from the earth that is used to support life that meets people's needs. Any natural substance that humans use can be considered a natural resource. Based on the availability there 2 types. Renewable: resources that are available in infinite quality and can be used repeatedly. Ex; forest, wind, water, etc. Non-renewable: a resource that is limited in abundance due to non-renewable nature and whose availability may run out in the future. Ex; fossil fuels ,minerals

1. NATURAL
RESOURCES
RENEWABLE AND
NON-RENEWABLE

2. NATURAL RESOURCES
• Natural resources are material from the earth that are used to support life that
meet peoples needs .Any natural substance that human use can be considered a
natural resource.
• Based on the availability there 2 types .
1. Renewable : resource that are available in infinite quality and can be used
repeatedly . Ex; forest, wind ,water etc.
2. Non-renewable : resource that are limited in abundance due to non-renewable
nature and whose availability may run out in the future. Ex; fossil fuels
,minerals

3. RENEWABLE RESOURCES
• A renewable resource is natural resource which will replenish to the
portion depleted by usage and consumption either through natural
reproduction or other recurring processes in a finite amount of time in
human time scale. Examples are following:
• Biomass energy
• Solar energy
• Tidal energy
• Hydropower energy
• Geothermal energy

4. SOLAR ENERGY
• Solar energy is the most abundant energy resource on Earth. Solar energy comes
from sun and can be captured and used in several ways, and as a renewable
energy source, is an important part of our clean energy future.
• There are many ways to use energy from the sun. The two main ways to use
energy from the sun are photovoltaics and solar thermal capture. Photovoltaics
are much more common for smaller-scale electricity projects (like residential
solar panel installations), and solar thermal capture is typically only used for
electricity production on massive scales in utility solar installations.

5. Advantages and Disadvantages
• Renewable Energy Source.
• Reduces Electricity Bills.
• Diverse application.
• Low maintenance cost.
• Solar energy storage is expensive.
• Weather dependent.
• Associated with pollution
• Uses a lot of space.

6. Application of solar energy
•Solar panel.
•Solarpowerplant.

7. HYDROPOWER ENERGY
• Hydroelectric energy, also called hydroelectric power or hydroelectricity,
is a form of energy that harnesses the power of water in motion—such as
water flowing over a waterfall—to generate electricity. People have used
this force for millennia.
• Hydroelectricity is the application of hydropower to generate electricity. It
is the primary use of hydropower today. Hydroelectric power plants can
include a reservoir (generally created by a dam) to exploit the energy of
falling water, or can use the kinetic energy of water as in run-of-the-river
hydroelectricity.

8. Advantages and Disadvantages
• Renewable resource and pollution free.
• Emission Free.
• Reliable.
• Adjustable.
• Create Lakes.
• Faster Developed Land.
• Hydropower is non-polluting, but
does have environmental impacts.
• Hydroelectricity is hydrology
dependent.
• In some cases, hydroelectricity
can disrupt wildlife habitat

9. • Some hydropower stations in india.
1. Bhakra dam
2. Mulla periyar dam
3. Sharavathi dam
• India is globally 5th with hydroelectric power .

10. GEOTERMAL ENERGY
• Geothermal energy is the heat that comes from the sub-surface of the
earth. It is contained in the rocks and fluids beneath the earth's crust and
can be found as far down to the earth's hot molten rock, magma.
• Geothermal power plants, which use heat from deep inside the Earth to
generate steam to make electricity. Geothermal heat pumps, which tap into
heat close to the Earth's surface to heat water or provide heat for buildings.

11. Pros and Cons
• No cost fluctuations determined
by gas and oil prices. 30%-60%
savings on heating and 25%-50%
savings on cooling.
• Fewer installers than standard
HVAC and thus less competition.
• Large scale geothermal power
plants are dangerous to the Earth's
surface and location-centric.

12. WIND AND TIDAL ENERGY
• Waves are formed by wind moving across the surface of the ocean. A large
amount of energy is stored in waves. Tidal energy is energy produced by
the tides of the ocean.
• Tidal power or tidal energy is harnessed by converting energy from tides
into useful forms of power, mainly electricity using various methods.
Although not yet widely used, tidal energy has the potential for future
electricity generation. Tides are more predictable than the wind and the
sun.

13. • High and low Tides occur twice a day and waves are dynamic in nature. Now,
coming to the question, the major difference between a Tidal and Wave energy
compared to Hydro energy is: ... The water with high potential energy is directed
as a jet to the turbine below the dam converting the potential energy into kinetic
energy.
• The first known patent to use energy from ocean waves dates back to
1799, and was filed in Paris by Girard and his son. An early application of
wave power was a device constructed around 1910 by Bochaux-Praceique
to light and power his house at Royan, near Bordeaux in France.
• Chile is the country with the highest wave energy potential in the world,
the British engineering consultant Baird & Associates reported last week.
According to company officials, wave energy along Chile's coast can
satisfy up to 24 percent of the country's energy demand in summer and 26
percent in winter.

14. Advantages and Disadvantages
• Renewable and pollution free.
• Water pumping can be done , flour
mills can be operated.
• Can be used to generate
electercity
• Produce noise
• Large area requriments
• Should be located away fromair
ports