Question

Select the correct answer from the list. (2 points)

In the greenhouse effect, far infrared radiation is
Earth's surface and absorbed and reemitted by
gases in the atmosphere. These gases have in
concentration over the past century.

Answer 1

[AI-generated answer — Bot GPT 3.5]

In the greenhouse effect, far infrared radiation is absorbed and reemitted by gases in the atmosphere. These gases have increased in concentration over the past century.

Answer 2

Some or all

Answer 3

[AI-generated answer — Bot GPT 3.5]

Some