They are changing ............... by cutting down trees in the forests.
weather conditions
This has resulted in two serious ......... The first is that many kinds of rare animals are killed. The second is that the environment where these animals are living is badly ...............
consequences/ destroyed
In order to make sure that these rare animals do not ..........., ........... have been made to protect the environments in which they live.
disappear/ efforts
The Earth will be a happy planet where human beings, animals and plants peacefully .......
co-exist
If people's ......... with the environment decreases, more species will survive and produce ...........
interference/ offspring
And they are destroying the air by adding ............. to it.
pollutants
Many other species ..................... on this planet.
exist
It can be said that human beings are changing the environment in all respects through their ............. and by their .............
actions/ habits
Scientists have made lists of ................ ................ and suggested ways to save them.
endangered species
As a result, the number of rare animals is decreasing so rapidly that they are in danger of becoming .................
extinct
Many organisations have been ............. and funds have been ..........
set up/ raised
Thousands of .............. ............. all over the world have been established to protect endangered animals.
national parks
Human beings have a great .................. on the rest of the world.
influence
The ................ is only one small species in the living world.
human race
Laws have been ............. to prohibit the killing of endangered animals and the ......... of the environments where these rare animals are living.
introduced/ destruction
Human beings are changing the ............. by building cities and villages where forests once stood.
environment
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