Answer:
A process that increases quantity over time.
Explanation:
The formula for exponential growth of a variable x at the growth rate r, as time t goes on in discrete intervals (that is, at integer times 0, 1, 2, 3, ...), is:

Exponential growth is a process that increases quantity over time. It occurs when the instantaneous rate of change of a quantity with respect to time is proportional to the quantity itself.
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"D" conserve resources.
The 3 R's were made to help people use and conserve resources wisely.
I hope this helps!
~kaikers
Snort it all bro snort it all