1 |
Humans have changed
the appearance and use of the land on Earth. |
2 |
Human beings have cut
down forests and drained wetlands. |
3 |
People have replaced
these ecosystems with towns and farms. |
4 |
A natural process has the
ability to change the landscape as well. |
5 |
Floods have enough
energy to wash away river banks. |
6 |
One drought has the
capability of creating a desert. |
7 |
A pest or disease has the
potential to kill a forest. |
8 |
Earth's environment has cyclical
changes like the seasons or longer like the ice ages
that altered the global climate over thousands of
years. |
9 |
Ecosystems and humanity have altered
the atmosphere, water and land. |
10 |
Of all the parts of the environment, the land seems
to have remained
the most solid and unchanging. |