Focus 4 unit 8

making something unclean, such as putting chemicals into lakes or rivers

Unless big companies start using b___________ materials, it will be very difficult to reduce the amount of rubbish in our seas and rivers.

Unfortunately, humans have caused i____________ damage to many parts of the countryside here.

There is a t____________ population of rhinos at the nature reserve, which is promising.

small mountains at the base of a much higher mountain

Sadly, the only remaining examples of the species are all in c____________ (kept in a locked place, without freedom).

a piece of land with fruit trees such as apples or cherries

I think the _____ (dry weather) may be a result of climate change.

an area where a particular animal or plant lives and feels the most at home

The birds fly back to the same b____________ g____________ every year.

It was so funny. Dad fell in the d__________ while he was trying to jump over it. He didn’t hurt himself though.

My mother is a(n) ________________. She’s always doing her bit to help the environment.

Every living creature is a part of the food ________________.

an area covered with grass and sometimes with wild flowers

Did you see the news report? There’s a lion on the _________. It escaped from the zoo!