Over time, oxygen began to build up in the atmosphere, which had two significant effects. Atmospheric methane was probably converted by oxygen to water and a weaker carbon dioxide.
Does cumulative mean overall?
The sum or total of the initial investment plus interest generated up to that point is the accumulated value, also known as the accumulated amount or cash value. The sum of an investment's present holdings, including the cash invested and interest accrued thus far.
What does accumulate mean in a sentence?
Before turning thirty, he wanted to amass a million dollars. Until dangerous levels are achieved, lead can build up in the body. In the lungs, these poisons build up.
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