geothermal and hydro-electric power

Question 1

what is geothermal and hydro electric power an example of

Answer 1

renewable energy sources

Question 2

where does geothermal power use energy from

Answer 2

underground thermal energy stores

Question 3

geothermal power gets its energy from underground thermal energy sources, where is this possible

Answer 3

its only possible in volcanic areas where hot rocks lie quite near to the surface

Question 4

where is much of the source of energy from

Answer 4

slow decay of radioactive elements, including uranium deep inside the earth

Question 5

what can geothermal energy be used for

Answer 5

generate electricity or to heat buildings

Question 6

what are the main draw backs for geothermal energy

Answer 6

there aren’t many sustainable locations for power plants
the cost of building a power plant is often ver high compared to the amount of energy it uses

Question 7

where does hydro electric power transfer energy from

Answer 7

the kinetic store of falling water

Question 8

what does hydro electric power usually require

Answer 8

the flooding of a valley by building a dam

Question 9

how will hydro electric power station help the environment

Answer 9

no release of methane or carbon dioxide
less chance of a loss of habitat
reduce impact on humans

Question 10

what is a big advantage of hydro electric power

Answer 10

immediate response to an increased demand for electricity