A
B
C
D
E
100

gazes from cars

exhaust fumes

100

lots of garbage causes

waste-disposal problem

100

make sth impure by mixing it with chemicals

contaminate

100

garbage from factories

industrial waste

100

problems affecting the whole world

global issues

200

People concerned with protecting the environment 


enviromentalists

200

Thickwooded land in tropical regions where the precipitation is very high

rain forest

200


  1. The heating up of the earth’s atmosphere by pollution


global warming

200

animals at risk of extinction

endangered species

200

fishing big quantities

overfishing

300

Polluted precipitation which kills trees

acid rain

300


  1. area of farming land or woods and parks which surrounds a town


green belt

300


  1. boxes, cartons and cans which can easily be decomposed by organisms such as bacteria, or by sunlight, sea, water


biodegradable

300

keeping animals in cages

captivity

300

the desire to own more

human greed

400

The process of removing the trees from an area of land

logging

400


  1. gradual wearing away


decompose

400

illegal hunting

poaching

400

programs to protect the environment 

conservation programs

400

living things small or big

ecosystem

500

Cultivatednaturally, without using any chemical fertilisers or pesticides

organic

500


  1. process waste material so that it can be used again


recycle

500

people against animal cruelty

Animal rights activists

500

 synonym of forest

wildlife

500

programs to help animals reproduce 

breeding programs