consuming energy recourses Flashcards
define renewable energy
a natural resource that will be regenerated by environment and wont run out
define non renewable energy
source of energy that cannot be remade as it takes hundreds of millions of years to reform again
define recyclable energy
energy resources that can be reused so will last into the futured
define stock resources
a non renewable resource that can only be used once so eventually will run out
define flow resources
resources that are used as it occurs and then replaced
what are some reasons that some countries have more energy than others
the climate, what they have available to them, the natural environment, money
who are the largest global oil consumers
Canada and USA
what are some reasons that Canada and USA are the largest energy consumers globally
very developed and therefore more cars and gadgets
they have access to oil
driving age is 16 - more people
tax is lower of petrol
vehicles are cheaper
poor public transport
who are the smallest global oil consumers and why
Africa and south east Asia
- less developed and therefore have to access to oil
why does energy consumption change over time
- increase in people using energy as countries develop
- population increase and therefore demand increase
- people emerging from poverty and getting richer
- technology improving
how does energy use vary between the rich and poor based on their economic development
rich - have higher demand for energy such as transport, technology, heating and industry. have better technology - wind turbines, solar panels
poor - limited access to energy resources and therefore it restricts their economic growth
how does energy use vary between the rich and poor based on their economic sectors
rich - majority of energy is used in homes and technology
poor - majority used in industry
what is energy security
being self sufficient with resources that you aren’t dependent on getting resources from other nations and therefore aren’t at an economic or political disadvantage
what is geopolitics
the way in which a countries economic and geography can effect its relation with other countries
what are three reasons for the increase price of oil
due to growth in world economies
Chinas rapid industrialisation increases demand for energy
long term, rising demands
What are the two reasons for a decrease in oil prices
recession in 2008 lead to economies slowing, therefore less demand for oil
discovery of new sources of energy/new ways of extracting energy
what is fracking and how does it work
a method of extracting gas and oil from the earth
- drill into the ground and a mix of water, chemicals and sand is pumped into ground breaking down rocks. water sucked out leaving oil and gas behind
what are the negatives of fracking
the chemical mixture is left in the ground
uses a lot of water
contaminates water with harmful chemicals
not told the percentage of chemicals so probably high
3% of natural gas is lost to atmosphere
require a lot of energy
what are oil sands
a mixture of sand, clay and water called Bitumen
what are the two places (and example of where) Bitumen can be found and how is it extracted from both
open cast mining - collected and taken away - Canada
underground - needs to be extracted - Venezuela
what are the negatives of extracting Bitumen
produces a lot of co2 to break down
heavy water usage
what are some positives of extracting oil
- provide new jobs
- not having to rely on other countries for oil
- estimated to be 180 billion barrels of oil in Canada
- able to sell and make money for government
what are some negatives of extracting oil
- is very expensive to build new sites
- damage to ecologically sensitive environment can be long-lasting and hard to clean
- may contaminate ground water - cause ill health
- fracking leads to industrialisation of rural areas
- increase in traffic
- release a lot of co2
how can we be more energy efficient in the home
turning lights off
only having heating when needed
solar panels
closing windows
underfloor heating
take shorter showers
