The carbon dioxide that is being added to the atmosphere by the burning of fossil fuels is an example of an ________ variable to the atmosphere and an ________ variable from the lithosphere.
A) input; input
B) input; output
C) output; output
D) output; input

Question

Quizplus · Accepted Answer

Carbon dioxide from burning fossil fuels is an input to the atmosphere and an output from the lithosphere.

The Carbon Dioxide That Is Being Added to the Atmosphere