Which of these is an example of an environment change that occurs rapidly a. forest succession b. tree growth c. decomposition d. volcanic eruption

The answer is

The correct answer to your question is D, volcanic eruption. volcanic eruptions can change an environment in the matter of seconds due to how catastrophic they can be. it can multiple years for a tree too grow or for decomposition to take place (the time it take depends on what is being decomposed). forest succession also can take a long time to occur due to the fact that many things need to be perfect before a forest can truly succeed.
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:) 

Water flows along the east coast and across the western tropical pacific towards south america, while they both are directed towards that way,  el niño does not directly affect the southern flow of water along the coast.