Energy XI part 4

Renewable energy is energy that comes from easily r_p______ed natural sources like sunlight and wind.

What renewable energy is most suitable for Surabaya? Why?

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P 197, 1 Describe the worldwide use of renewable energy as shown in graph A.

More than half of all renewable energy comes from ​ (a)   where rivers have had dams constructed along them. ​ (b)   power is the next largest. Many wind turbines have been built to benefit from reliable prevailing winds. Solar panel development allows sunshine to be harnessed to ​ (c)   solar power. These account for ​ (d)   percent of renewable energy generated. A smaller amount comes from plants such as biogas and the remainder comes from geothermal energy that is only available in certain parts of the world such as ​ (e)   , where there are thermal springs.

• H.E.P.
• Wind
• generate
• 93
• Iceland
• Coal
• Nuclear
• Hydrogen
• China
• 78

P197, 2 What are the advantages of using renewable energy?

The main advantage of renewable energy is that it decreases ​ (a)   on the fossil fuels responsible for ​ (b)   and climate change. It also helps reduce reliance on ​ (c)   fossil fuels, provides energy ​ (d)   , and eases the global energy crisis brought on by ​ (e)   ​ demand for resources that are running out.

• reliance
• global warming
• expensive
• security
• pollution
• unreliability
• abundance
• waste
• decreasing
• increasing

[B] Classify the advantages and disadvantages of these renewable energy.

Groups:

(a) Geothermal

,

(b) Wind Turbine

,

(c) HEP

,

(d) Solar Panel

• Easy installation for individual use

• Birds can be killed by the blades

• can be used to heating building while generating electricity

• The most used globally

• Built tall to save more space

• dams may disrupt river ecosystem

• its not available at night

• its not available on cloudy day

• disturbing the view in some areas

• can be used to control flood and irrigation

• Convert water to electricity energy

• large scale require significant land area

• May produce small amounts of water pollutants.

• Building large dams can be expensive.

• may produce noise pollution

• Only Suit sites with hot underground

• not dependent on weather

• can be installed on rooftops

• When installing may trigger minor earthquakes

Approximately, what % of the world's energy comes from fossil fuels?

• 22

• 44

• 66

• 88

• 99

Where do fossil fuels originally come from?

• Outer space
• Underwater volcanoes
• Artificially created in laboratories
• From the center of the Earth
• Solar energy

Answer explanation

Fossil fuels, such as coal, oil, and natural gas, are formed from the remains of plants and microorganisms that lived millions of years ago. These organisms captured and stored solar energy through photosynthesis. Over time, the organic matter was buried and subjected to heat and pressure, leading to the formation of fossil fuels. Therefore, fossil fuels can be considered a stored form of solar energy from ancient times

Why Global energy consumption has increased over the last 100 years

• Decreased demand for energy in various sectors
• underpopulation

• Population growth

• Industrialization

• increased number of electrical gadgets

Which country leads the world in th coal production?

Which country leads the world in the exploitation of oil?