study of living things and their environment, Abiotic, Ecosystem, Ecology, Biotic, group of things that work and live together in their environment, Abiotic, Biotic, pollution, Ecosystem, Non living thing example- sun, water, oxygen, Biotic, Abiotic, Ecosystem, Ecology, Living thing example-trees, rabbits, dog, Ecosystem, Abiotic, Ecology, Biotic, the cutting down of trees, deforestation, Biotic, Ecosystem, Ecology, emitting chemicals and harmful things into the air, land, and water, Abiotic, Ecosystem, deforestation, pollution.

Ecosystems

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