The complexity of life has throughout Maryland's 4.6 billion year history. what is the right answer that should goin the blank

A. increased
B. decreased
C. stayed the same

  A.  increased

Explanation:

In general, life has gotten more complex through history. However, there have been times when biodiversity as been substantially reduced. (We may be in one of those times at present.) We cannot say that the complexity of life has increased throughout the history of any particular place, but we can say the long term trend has been one of increase.

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