differentiate between older and younger onion cell
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Answer:
Coal and petroleum are formed as a result of degradation of ancient plant life which lived millions of years ago. ... Over time, heat and pressure from geological processes transformed these materials into coal. Since these are formed from essentially fossils, they are also known as fossil fuels.
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Explanation:
Older cells are dry and are present on the outer sides. Younger cells are moist and present in the inner sides.
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