CH 2renewb and nonrenewb energy sources

Question 1

what is a non renewable energy source

Answer 1

will eventually run put and is not replaced at the same rate as being used

Question 2

what is a renewable energy source

Answer 2

will not run out it being (or can be) replaced at the same rate as which is used

Question 3

what are the main renewable and non renewable resources available on earth

Answer 3

r: wind power, wave power, solar power, tidal power, geothermal power, biofuel, hydroelectric

nr: coal, gas, oil, nuclear

Question 4

what are the main advantages of using coal as an energy source

Answer 4

-enough to meet current demand
-reliable
-can control supply to match demand
-cheap to extract and use

Question 5

what is a disadvantage of using coal as an energy source

Answer 5

-will eventually run out
-releases CO2 which contributes to climate change
-releases sulfur dioxide which releases acid rain

Question 6

what are the 5 main advantages of using nuclear fuel as an energy resource

Answer 6

-lot of energy from a small mass
-reliable
-can control supply to match demand
-enough fuel available to meet current demand
-no polluting gas

Question 7

what are the main disadvantages of nuclear power as an energy resource

Answer 7

-waste is dangerous, difficult, and expensive to deal with
-expensive initial set up
-expensive to shut down and to run
-hard to deal with when it goes wrong

Question 8

What are the main advantages of using solar energy

Answer 8

-can be used in remote places
-no polluting gases
-no waste products
-very low running cost

Question 9

what are the main disadvantages of using solar energy

Answer 9

-unreliable
-cannot control supply
-initial set up expensive
-cannot be used on large scale

Question 10

what are the main advantages of tidal power

Answer 10

-no polluting gases
-no waste products
-reliable
-can produce large amount of electricity
-low running cost
-no fuel cost

Question 11

what are the main disadvantages of using tidal power

Answer 11

-can harm marine habitats
-initial set up expensive
-cannot increase supply when needed
-amount of energy varies on time of month(neap and spring tides)
-hazard for boats

Question 12

what are the main advantages of using wind turbines

Answer 12

-no polluting gases
-no waste products
-low running cost
-no fuel cost

Question 13

main disadvantages of wave turbines?

Answer 13

-unreliable
-depends on weather
-cannot control supply
-initial set up expensive
-can harm marine habitats
-hazard for boats
-can’t be used on large scale

Question 14

main disadvantages of using wave turbines

Answer 14

-unreliable
-depends on weather
-cannot control supply
-take up a lot of space
-can produce noise pollution

Question 15

what are the advantages and disadvantages of using geothermal energy?

Answer 15

ads;
-no polluting gases
-low running cost

dis;
-initial set up expensive
-available in few locations

Question 16

main advantages and disadvantages of using biofuel

Answer 16

ads:
can be ‘carbon neutral’
reliable

dis:
expensive to produce
use land/water that could be used to grow food

Question 17

main advantages and disadvantages of using hydroelectric power

Answer 17

ads:
no polluting gases
-no waste products
-low running cost
-no fuel cost
-reliable
-can be controlled to meet demand

dis:
initial setup expensive
dams can harm/ destroy marine habitats