topic 7 - climate change

Question 1

what is a positive about fossil fuels?

Answer 1

provides the majority of human kinds energy supply

Question 2

negative about fossil fuels?

Answer 2

• release greenhouse gases, such as methane, carbon dioxide etc
• warming the climate
• contributing to major weather events

Question 3

why will fossil fuel demand increase in the future?

Answer 3

because the population is growing and we need to meet energy demands. also governments are still investing money into oil

Question 4

what are renewable sources of energy?

Answer 4

solar, biomass, hydropower, wind, wave, tidal, and geothermal

Question 5

positives and negatives of solar power?

Answer 5

P - cheaper in the long run
- low maintenance
N - weather dependent
- storage is expensive
- uses a lot of space

Question 6

positives and negatives of biomass?

Answer 6

p - renewable
- waste reduction
- reliable
n - high cost - plants are expensive to build
- space
- some environmental impacts, can release pollutants like nitrogen oxides

Question 7

positives and negatives of wind?

Answer 7

P - the cleanest form of energy
- reduces energy imports
- cost-effective
N - eye sore
- can be dangerous to some wildlife
- weather dependent

Question 8

positives and negatives of tidal?

Answer 8

P - zero carbon emissions
- predictable
- high power output
N- expensive
- environ. impact
- cant meet energy demand
- location limits

Question 9

positives and negatives of wave?

Answer 9

P - reliable
N - costly
- location limited
- noise pollution
- effects marine life

Question 10

positives and negatives of geothermal?

Answer 10

P - a reliable source of power
- small land footprint
- long-lasting
N - location dependent
- high initial costs
-

Question 11

positives and negatives of nuclear power?

Answer 11

P - carbon-free
- high power output
- reliable energy source
N - uranium isn’t a renewable source
- high costs upfront
- nuclear/radioactive waste is toxic and harmful to environ
- malfunction can be catastrophic

very controversial because of the many accidents that have happened

Question 12

what is energy security?

Answer 12

the uninterrupted availability of energy sources at an affordable price
- it is dependent on adequate, reliable and affordable energy

Question 13

what factors effects energy choices that a government or society make?

Answer 13

availability - some resources aren’t available in that country
sustainability - the countries’ view
scientific and tech developments - baso the development of the place
culture - the traditions
political - governmental decisions and views
economic
environ. - also like what they have and how bad the environ is

Question 14

climate meaning?

Answer 14

how the atmosphere behaves over relatively long periods of time

Question 15

weather meaning?

Answer 15

the conditions in the atmosphere over a short period of time

Question 16

what factors are the weather and climate effected by?

Answer 16

oceanic and atmospheric circulatory systems