Answers

2014-06-30T13:25:39+05:30
Enviroment is changing due to global warming and global warming which is due to pollution and all the peoples are creating pollution day by day without satoping and if this continues than earth will become an arid land soon.
2 1 2
Due to human activities such as global warming cutting of trees etc.
2014-06-30T14:21:07+05:30
The different environments that exist in the earth have gradually changed over time. There has also been slight variation in the position of continents due to the movement of tectonic plates over the years. But this is a natural phenomenon. Nowadays, due to population explosions and over exploitation of resources, man has been harming the environment and this has also caused The environment to change over time, but in an artificial way.
2 5 2