National and global energy resources

Question 1

what is a renewable energy source

Answer 1

can be replenished

Question 2

give 4 examples of renewable energy sources

Answer 2

wind, water, solar, tidal

Question 3

what is a non-renewable energy source

Answer 3

will eventually run out

Question 4

give 2 examples of non-renewable energy source

Answer 4

coal, oil, gas, nuclear fuel

Question 5

what is the main use of renewable energy source

Answer 5

electricity generation

Question 6

what is 1 advantage of generating power using gas rather than coal

Answer 6

lower emissions of CO2

Question 7

state 1 disadvantages of using renewable energy resources to generate power

Answer 7

-output is determined by external factors like wind speed

Question 8

Explain the environmental impacts of burning fossil fuels

Answer 8

-CO2 contributes to greenhouse effect causing global warming
-can damage buildings/crops

Question 9

state 3 advantages of fossil furls as an energy resource

Answer 9

-reliable
-can produce large amounts of energy for a given quantity
-cost-effective

Question 10

state 1 advantage and disadvantage of nuclear power

Answer 10

advantage - doesn’t release greenhouse gasses
disadvantage- non-renewable

Question 11

How does hydroelectric power produce energy and what is the disadvantage

Answer 11

-rainwater collects behind a dam and when released its used to turn a turbine to produce electricity
-disadvantage-dam can cause flooding

Question 12

what are the advantages of tidal energy sources

Answer 12

don’t produce greenhouse gasses and are reliable