2. HUMAN ACTIVITY ALTERS
ECOSYSTEM
Our activities alter
ecosystems for three
reasons:
● We overexploit naturaloverexploit natural
resources.resources.
● We occupy the natural
environment.
● We cause pollution.
3. WE OVEREXPLOIT NATURAL
RESOURCES
● Natural resources are
everything we obtain from
ecosystems and consume
and use to realise our
activities.
● Overexploiting means we
extract natural resources
from the environment
faster than they regenerate
or replace themselves.
4. WE OCCUPY AND DESTROY THE
NATURAL ENVIRONMENT
● We occupy areas that
were once natural
ecosystems.For
example, we
substitute forests for
cities.
6. WHAT PROBLEMS DO WE CAUSE ?WHAT PROBLEMS DO WE CAUSE ?
● These actions cause
many problems.For
example:
● Loss of biodiversity.
● Loss of natural
spaces.
● Climate change.
7. Some ways of protecting the planet
● Exploit resources
carefully.
● Protect natural
spaces.
● Protect endangered
species.
● Reduce pollution.
