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Ch 3 Conserving Life

8th grade Ch. 1 Exploring and Classifying
Across
Species that moves into an ecosystem as a result of human actions.
Thinning of Earth's ozone layer caused by CFCs or chlorofluorocarbons.
Species that was once present on Earth but has since died out.
Variety of life in an ecosystem
Conservation strategy that returns organisms to an area where the species once lived.
Process of bringing a damaged habitat back to a healthy condition.
Original organism in an ecosystem.
Species that is likely to become endangered in the near future.
Species that is in danger of becoming extinct.
Down
Study of methods for protecting Earth's biodiversity.
A population of organisms that is cared for by humans.
Forms when sulfur dioxide and nitrogen from industries and car exhausts combine with water vapor in the air