Energy

Question 1

energy facts

Answer 1

used for heating/electricity, can be generated in multiple ways

Question 2

sources

Answer 2

nuclear/geothermal/solar/hydro/fossil fuels/wind

Question 3

energy efficiency

Answer 3

best way to reduce environmental impact is to use least wasteful energy by using better technology, use renewables etc

Question 4

how countries have become efficient

Answer 4

introduced regulations and label appliances to show efficiency but energy efficiency has been outdone by increase of appliances

Question 5

another way to improve efficiency

Answer 5

improve amount of energy made to energy used especially in developing countries

Question 6

renewable energy

Answer 6

not as popular as non renewables as cant keep up with demand

Question 7

positives/negatives

Answer 7

better for environment, little/no emissions, people might find them ugly, energy made might not be used for certain things

Question 8

hydropower

Answer 8

use water to generate electricity, China largest producer, not as polluting but can disrupt hydrological cycle/habitats

Question 9

wind

Answer 9

wind to generate electricity, used to sail boats, no emissions, cheap, noisy, issue with birds, lots of people dont like them so build in sea

Question 10

solar

Answer 10

can be used for multiple electricity uses, meets demand, no emissions, expensive, needs land

Question 11

biomass

Answer 11

plant matter/wood being burnt, no co2 emissions, deforestation to make room for biomass plantations

Question 12

geothermal

Answer 12

heat from ground, inject hot rock to get energy, usually done domestically in nordic countries, cheap but only in specific areas, can cause earthquakes

Question 13

nuclear

Answer 13

energy from radioactive decay, cheap, produces waste, accidents,

Question 14

future

Answer 14

energy demand will rise, but renewables/efficiency should be able to keep up with demand, eventually switch from non renewables to renewables, more policies to improve efficiency