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sustainability
chapter 27
Question | Answer |
---|---|
sustainability | conservation of the balance of the worlds ecology indefinitely |
the three pillars of sustainability are | environmental, economic and social |
a fuel is | a substance that burns in oxygen to produce heat |
fossil fuels are | coal oil and gas |
natural gas is mainly | methane |
hydrocarbons are made only of carbon and hydrogen | |
when hydrocarbons burn | carbon dioxide water and energy are made |
the greenhouse effect is | the natural trapping of the suns energy by the atmosphere |
extra warming that results from an enhanced greenhouse effect is called | global warming |
biofuels are made from plants such as | rapeseed oil and sunflower oil |
bitumen is used for | taring roads |
kerosene is used for | central heating |
LPG stands for | liquified petroleum gas |
sewage refers to | human waste |
algal bloom | cause dissolved oxygen levels in water to fall |