energy

Question 1

define nonrenewable energy resources

Answer 1

energy resources that are produced slower than theyre used up

Question 2

define renewable energy

Answer 2

naturally occuring and potentially infite energy resources that cause almost no harm to the environment

Question 3

what 2 factors influencce energy production levels

Answer 3

-levels of development
-avalibility of resources

Question 4

name the 6 renewable energy resources

Answer 4

1-wind energy (windmills convert kinetic energy to electricity)
2-solar energy (harness radiation to produce electricity)
3-hydroelectricity (use water from reservoirs to generate electricity)
4- water energy (tides/currents to electricity
5-geothermal (energy from underground)
6-biomass (generated from organic matter)

Question 5

name the 4 nonrenewables

Answer 5

-natural gas
-oil
-coal
-nuclear energy

Question 6

what 2 places have the most solar energy potential

Answer 6

• near the equator since light is more cnocentrated
  -african countries recieve the most sunlight but cannot afford to make use of it

Question 7

what 4 factors influence energy consumption

Answer 7

-location (cimate hot -> more AC)
- population (more demand if its higher)
-development (more industry=more usage)
-transport levels (more car ownership=more fuel/energy needed)

Question 8

whatre the pros and cons of using nuclear power

Answer 8

pros
-0 greenhouse emissions
-reduce reliance on imported fossil fuels
-reliable and effient
cons
-power plant accidents
-radioactove waste
-terrorist usage of nuclear fuels as weapons
-increase in cancer levels near powerplants

Question 8

why do countries wsnt to increase the production of renewable energy

Answer 8

-reduce reliance on imported fossil fuels
-cut greenhouse emissions to make environment cleaner
-satisfy international obligations

Question 8

whatre the pros and cons of using hydroelectricity

Answer 8

cons
-large dams cause visual pollution
-rivers are damaged which risks marine wildlife
-large areas of land need to be flooded which releases methane

Question 9

whatre the pros and cons of using wind power

Answer 9

pros
-generate lots ofelectricity and are easy to attain
cons
-distrubs home owners which can decrease sale value
-kills wildlife ex-birds
-suitabke areas are near coasts which damages scenery and is expensive

Question 9

whatre the pros and cons of using biofuels

Answer 9

pros- comes from crops which is renewable,cleaner emissions
cons
-cropland needed which adds to the global food crisis
-lots of input needed
-manufacturers use energy which increases greenhouse effect
-lower energy outputs

Question 10

whatre the pros and cons of using geothermal power

Answer 10

pros
-low environmental impact
-occupy little land area
-arent weather dependant
cons
-only a few locations are suitable and some are too far from where energy could be utilised
-high initial costs

Question 11

whatre the pros and cons of using solar power

Answer 11

pros
-no noise pollution
-low maintenance costs
-improving tech
cons
-high initial costs
-cant get energy during storms or at night
-limited in countries w low sunlight
-large areas of land required

Question 12

whatre the pros and cons of using water power

Answer 12

pros
-much more predictable than solar and wind
cons
-high initial costs
-damage marine ecosystems
-sediment buildup behind powerplants