The correct answer is A
volcanic eruption
Volcanic eruption is defined as the sudden rush of energy materials such as gas,lava and steam. all the others processes takes a great deal of time. For example decomposition takes a long time. Pond succession is dependent on settling of debris and hence takes a long time. regrowing of a forest after a a volcanic eruption can span several years,especially if indigenous trees are the main tree species.
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The sugar molecules thus formed contain carbon, hydrogen, and oxygen: Their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins or DNA), used for example to form new cells.
