Final answer:
Plants and animals are living things because they move, grow, reproduce and perform other life processes. Stones and water are non-living things.
Step-by-step explanation:
Plants and animals are living things because they move, grow, reproduce and perform other life processes. We can tell they are alive because they can carry out all seven life processes. In contrast, non-living things like stones and water do not carry out all seven life processes.
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