gazes from cars
exhaust fumes
lots of garbage causes
waste-disposal problem
make something impure by mixing it with chemicals
contaminate
garbage from factories
industrial waste
problems affecting the whole world
global issues
People concerned with protecting the environment
enviromentalists
Thick wooded land in tropical regions where the precipitation is very high
rain forests
The heating up of the earth’s atmosphere by pollution
global warming
animals at risk of extinction
endangered species
fishing big quantities
overfishing
Polluted precipitation which kills trees
acid rain
area of farming land or woods and parks which surrounds a town
green belt
boxes, cartons and cans which can easily be decomposed by organisms such as bacteria, or by sunlight, sea, water
biodegradable
keeping animals in cages
captivity
the desire to own more
human greed
The process of removing the trees from an area of land
logging
gradual wearing away
decomposing
illegal hunting
poaching
programs to protect the environment
conservation programs
living things small or big
ecosystem
Cultivated naturally, without using any chemical fertilisers or pesticides
organic
process waste material so that it can be used again
recycle
people against animal cruelty
Animal rights activists
synonym of forest
woods
programs to help animals reproduce
breeding programs