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The process by which one community is replaced by another until a stable community occupies the area.
The careful management and wise use of natural resources. One way to do less harm to ecosystems is to use less of the natural resources they contain.
Changing the packaging or makeup of a product so that it takes fewer resources to make. Packaging materials make up most of the trash thrown away in the US.
Some ecosystems are protected from change by limits on their use. The protection of an area is called preservation. Example: a national park
Over time, changes in climate, rate of erosion & population growth causes big changes in ecosystems
The United States government helped in the _________________ of ecosystems by setting aside national parks.
When the community in an ecosystem changes over time, the process is known as ____________________.
______________________ conserves resources by using less material to make or package an item.
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