energy and water

Question 1

What are the two main categories of energy sources?

Answer 1

Renewable energy and non-renewable energy

Renewable energy includes sources like wind, solar, and hydroelectricity, while non-renewable energy includes fossil fuels and nuclear energy.

Question 2

List three examples of non-renewable energy sources.

Answer 2

• Fossil fuels
• Nuclear energy
• Coal

Question 3

List three examples of renewable energy sources.

Answer 3

• Wind
• Solar
• Geothermal
  Water

Question 4

What is the energy mix?

Answer 4

The relative contribution of a country’s different energy sources to be consumed

Energy mix is important for energy security.

Question 5

What is the significance of a large energy mix in MEDCs?

Answer 5

It provides security in case one supply is cut off

MEDCs have a diverse energy mix to ensure a stable energy supply.

Question 6

What global trend is observed regarding energy use?

Answer 6

Increase in renewable energy use and increase in energy demand

Question 7

Which region has the highest non-renewable energy use?

Answer 7

Middle East

Question 8

Which regions have the highest renewable energy mix?

Answer 8

South and Central America

Question 9

How does energy consumption vary among different regions?

Answer 9

Highest consumption is in the Middle East, North America, and Norway

Question 10

What characterizes energy consumption in developed countries?

Answer 10

Low population, rising living standards, resource use becomes more efficient

Question 11

What characterizes energy consumption in developing countries?

Answer 11

High population growth, low energy consumption due to lack of availability

Question 12

What are some advantages of hydroelectric energy?

Answer 12

• No greenhouse gas emissions
• Provides water storage for industrial and domestic use
  Waves are constant

Question 13

What are some disadvantages of hydroelectric energy?

Answer 13

• Prevents fish movement upstream
• Expensive to build and maintain

Question 14

What are some advantages of tidal energy?

Answer 14

• No greenhouse gas emissions
• No air pollution

Question 15

What are some disadvantages of tidal energy?

Answer 15

• Expensive to build and maintain
• Few suitable sites

Question 16

What are some advantages of wind energy?

Answer 16

• No greenhouse gas emissions
• No air pollution

Question 17

What are some disadvantages of wind energy?

Answer 17

• Visual pollution
• Only works when there is a lot of wind

Question 18

What are some advantages of solar energy?

Answer 18

• No greenhouse gas emissions
• No air pollution

Question 19

What are some disadvantages of solar energy?

Answer 19

• Expensive to install
• Only works when there is sun

Question 20

What are some advantages of geothermal energy?

Answer 20

• Reliable
• Lots of potential sites

Question 21

What are some disadvantages of geothermal energy?

Answer 21

• Expensive
• Emits sulfuric gases

Question 22

What are some advantages of biomass energy?

Answer 22

• Reduces amount of waste
• Abundant in most locations

Question 23

What are some disadvantages of biomass energy?

Answer 23

• Produces greenhouse gases
• Expensive

Question 24

What are the advantages of nuclear energy?

Answer 24

• No greenhouse emissions
• Efficient

Question 25

What are the disadvantages of nuclear energy?

Answer 25

* Nuclear waste difficult to dispose of

Question 26

What are the advantages of fossil fuels?

Answer 26

* Efficient * Available

Question 27

What are the disadvantages of fossil fuels?

Answer 27

* Greenhouse gas emissions * Pollution - health issues

Question 28

What percentage of China's energy consumption was non-renewable in 2015?

Answer 28

89.5%

Question 29

What is the main principle of China's energy policy?

Answer 29

Energy conservation and strong emphasis on domestic resources

Question 30

What is the Strategic Petroleum Reserve in China?

Answer 30

A stock of oil set aside for emergencies

Question 31

What is the location and significance of the Three Gorges Dam?

Answer 31

Yangtze River, China; provides water for 400 million people and 66% of rice

Question 32

List five uses of water.

Answer 32

* Drinking * Agriculture * Industry * Sanitation * Energy production

Question 33

What is the water cycle?

Answer 33

Evaporation, condensation, precipitation, infiltration, surface runoff

Question 34

What are the causes of water scarcity?

Answer 34

* Overuse * Pollution * Climate change * Population growth

Question 35

What are the consequences of water scarcity?

Answer 35

* Food insecurity * Health issues * Economic impacts

Question 36

How does water demand differ between MEDCs and LEDCs?

Answer 36

MEDCs have higher use for industry, LEDCs have higher use for agriculture

Question 37

What are the impacts of water scarcity in California?

Answer 37

* Lower crop yields * Increased prices * Economic strain on farmers

Question 38

What are some solutions to water scarcity in California?

Answer 38

* Water conservation regulations * Desalination plants * Improvements to infrastructure