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the existence of a large number of different kinds of animals and plants which make a balanced environment
The mining project threatens one of the world's richest areas of biodiversity
su lam ban, o ue
contaminate something (with something)
to make a substance or place dirty or no longer pure by adding a substance that is dangerous or carries disease
the act of getting rid of something
( may nghien rac)
su xoi mon
a substance that pollutes something, especially air and water( chay gay o nhiem)
lasting for a long time; difficult to cure or get rid of( man tinh, kinh nien)
that you can imagine or believe