Which of the following is an example of a non-living thing that can grow by accretion?

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Coral reefs grow by accumulation of calcium carbonate skeletons secreted by living coral polyps, but the reef structure itself is non-living. It increases in mass externally (accretion). Mushrooms, mango trees, and bacteria exhibit intrinsic growth by cell division, characteristic of living organisms. Thus, coral reef growth is non-living accumulation.

Which of the following is an example of a non-living thing that can grow by accretion? MCQ with Answer and Explanation

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