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Biology, 16.07.2020 17:01 imanim3851

Systems encountered in nature at Earth's surface, such as a forest, are:. a. closed systems in terms of energy.
b. open systems in terms of energy. open systems in terms of matter.
c. both open systems in terms of energy and open systems in terms of matter.
d. both closed systems in terms of energy and open systems in terms of matter.

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