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succession primary, secondary, a gradual change in an ecosystem, sometimes occurring over hundreds of years
primary succession a glacier moves and their is bare land.
pioneer plants plants that take over a bare area.
mossy stage A thin layer of soil and mosses take over. Bird droppings and organic matter get trapped in the dense moss
grassy stage grasses, flowers, and trees start to grow.
climax community spruce and hemlock trees, can stay the same for thousands of years
pollution waste damage in an ecosystem
acid rain acids and water vapor mix and condense, fall to earth
conserving saving
reduce cutting down
reuse use again
recycle use again to make a new item
secondary succession A natural disaster happens.
Created by: studyrocker