Energy Resources, Disadvantages And Advantages

Question 1

What are three energy resources from the lithosphere?

Answer 1

1) Fossil Fuels
2) Nuclear energy
3 Geothermal energy

Question 2

What do fossil fuels consist of ?

Answer 2

• Coal
• Natural Gas
• Oil

Question 3

Where do oil, and natural gas come from?

Answer 3

Oil, and natural gas comes from dead marine animals and algae. They then get covered in sediments, and eventually turn into oil. (cuz of pressure)

Question 4

Where does coal come from?

Answer 4

Coal, comes from all the dead animals and algae that once lived in swamps. That got covered in sediments, and compressed it into coal.

Question 5

How do fossil fuel energy plants work?

Answer 5

Long story short, people mine fossil fuels, then burn them to produce thermal energy. It then is transformed into mechanical, then electric energy.

Question 6

What are the advantages to fossil fuel energy?

Answer 6

Uh NONE

Question 7

What are the disadvantages to fossil fuels ?

Answer 7

• it’s non renewable
• the combustion releases carbon dioxide (causes global warming)
• natural gas releases methane (again global warming)
• the combustion also releases sulfur dioxide and nitrogen oxides (causes acid rain)
• fossil fuels also will run out in a few decades (non reliable)

Question 8

Where does nuclear energy come from?

Answer 8

Nuclear energy comes from uranium. (a radioactive element, found in the lithosphere)

Question 9

How do nuclear power plants work?

Answer 9

The nucleus of uranium is split, releasing nuclear energy. Which is then transformed into thermal energy, then mechanical energy, then lastly electric energy.
( nucleus of uranium split. nuclear - thermal - mechanical - electric )

Question 10

What are the advantages of nuclear energy ?

Answer 10

• it’s efficient
• emits very little greenhouse gases
• produces a large amount of energy

Question 11

What are the disadvantages of nuclear energy ?

Answer 11

• it’s non renewable

- it’s dangerous

Question 12

Where does Geothermal energy come from?

Answer 12

Geothermal energy comes from magma, under the earths crust.

Question 13

How do geothermal power plants work ?

Answer 13

The thermal energy from magma, is transferred to a liquid, turning into steam. It then goes through a turbine transforming it into mechanical energy, and then into a generator turning it into electrical energy.
(thermal - liquid - steam - mechanical - electrical)

Question 14

What are the advantages to Geothermal energy?

Answer 14

• it’s renewable

- it does NOT release greenhouse gases

Question 15

What are the disadvantages to Geothermic energy?

Answer 15

• it’s expensive

- it’s only used in volcanic areas