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Landfill
Site for the disposal of waste materials, leading to release of methane
Sea water
________ is a renewable resource because there is such a large amount of it that humans will not use it all up.
Crude oil
________ is processed through fractional distillation and cracking to produce a wide variety of useful chemicals.
natural resources
Less energy is needed for recycling compared with making a new product from ________, so the emission of greenhouse gases is reduced.
Haber
However, the ________ process enabled humans to produce fertilisers from nitrogen in the air, and has allowed synthetic fertilisers to be produced.
Synthetic fertilisers
________ have allowed intensive farming to become widespread, which has meant that we can produce enough food to support the growing world population.
extracted
remove or take out
ingots
block of solid metal
landfill
places where refuse is buried underground
greenhouse gases
responsible for global warming
crude oil
mixtures of hydrocarbons
energy
capacity of a system
natural resources
minerals that have been made through the formation of the world
environment
Surroundings where people live
recycling
reusing or reprocessing material
copper-rich ores
_____short supply
Note 
Flashcard (50)