Hi there!
Recall that:

Given an electric field, the potential difference can be solved by using integration. Similarly:

We can differentiate the electric potential equation to solve for the electric field.
Use the power rule:

Differentiate the given equation.

Or:

I'm sorry but I'm abouta fail a test if I dont d ig.i this for the points
(c) is the correct choice.
El Nino (a), Earth's orbit (b), and solar energy output (d) are all "natural" occurrences. You can't do a thing aboutum.
Fossil fuels ... or, more precisely, humanity's use of vast quantities of fossil fuels as a convenient source of huge quantities of energy ... and the subsequent increase of Carbon Dioxide in the planet's atmosphere, is not the result of "natural" processes. It's the result of human efforts to <em>alter and control</em> Nature, through <em>artificial</em> processes.
Answer:
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Explanation: