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When Renewable energy
water flows over hot can also be derived from
rocks underground, hot water agricultural crops. In some areas,
and steam are created, which escape corn, cornstalks, sugarbeets, and
to the Earth's surface through mud pools, switchgrass are grown specificallyu to
hot springs, and geysers. This hot water and produce ethanol, a liquid which can be used in
steam created underground can be use to internal combus on engines and fuel cell. Brazil
create electricity. This called geothermal energy. has one of the largest ethanol-mixed gasoline
Volcanoes are also examples of this energy. The programmes in the world. It produces ethanol
Maoris of Australia have been using the hot rocks fuel from sugercan, which is blended with 75%
for cooking for years. Find out the importance gasoline. Ethanol
of the Ring of Fire, fuel is also widely
with reference to available in th
geothermal USA.
energy.

1. Which of these energy resources is renewable?

a) petroleum b) diesel c) CNG d) hydroelectric

2. Which of these is not a greenhouse gas?

a) carbon dioxide b) water vapour

c) ozon d) nitrogen

3. Renewable energy resources:

a) pollute the environment

b) are constantly renewed by nature

c) protect the ozone layer

4. This source of renewable energy does not depend on weather.

a) geothermal b) hydroenergy

c) solar energy d) wind energy

5. When using solar energy, what do you cal the device that absorbs

sunlight?

a) sundial b) solar collec on bucket

c) solar panel d) solar cooker

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