Fill in the gaps.
We’re trying to protect the ______ from pollution.
The owl's natural ______ is in the forests of the Northwest.
The handle of the knife was made of ______, perhaps elk or deer.
The use of electric cars could be a key factor in fighting ______.
Many animals naturally live and travel together in groups called ______.
For homework I want you to write an essay on ______ species.
______ is destroying large areas of tropical rain forest.
Gas is the only ______ ______ without environmental problems.
______ are working to improve the quality of our lakes and rivers.
Trade in ______ was banned in 1989 and since then elephant populations have begun to recover.
Many plant and animal ______ are found only in the rainforests.
Thousands of turtles drag themselves onto the beach and ______ their eggs in the sand.
The red squirrel is in danger of becoming ______ in England.
Wild animal traffic is the third most profitable ______ business in the world
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