Question

1. the pre - industrial concentration of atmospheric co₂ immediately prior to the industrial revolution was close to ____ ppm. a. 380 b. 410 c. 200 d. 280 e. 350 copyright © 2024, mcgraw - hill education. this content was printed for the exclusive use of licensed students. 6/8

Explanation:

The pre - industrial atmospheric \(CO_2\) concentration is a well - known scientific fact. Before the industrial revolution, the concentration of \(CO_2\) in the atmosphere was approximately 280 ppm.

Answer:

D. 280