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ohaa [14]
3 years ago
10

The diagram is a model of one way that materials move

Biology
1 answer:
hram777 [196]3 years ago
8 0

Answer:

they move to an area with lower concentration.

Explanation:

Air particles always travel from an area where they are high in concentration to an area where they are low in concentration. as we can see that on the left hand side the numbers of o2 and co2 molecules are balanced.

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