1) study of living things and their environment a) Abiotic b) Ecosystem c) Ecology d) Biotic 2) group of things that work and live together in their environment a) Abiotic b) Biotic c) pollution d) Ecosystem 3) Non living thing example- sun, water, oxygen a) Biotic b) Abiotic c) Ecosystem d) Ecology 4) Living thing example-trees, rabbits, dog a) Ecosystem b) Abiotic c) Ecology d) Biotic 5) the cutting down of trees a) deforestation b) Biotic c) Ecosystem d) Ecology 6) emitting chemicals and harmful things into the air, land, and water a) Abiotic b) Ecosystem c) deforestation d) pollution

Ecosystems

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