Since 1958, CO 2 in the atmosphere has

The question mentions the compound CO 2 has been present in the atmosphere since 1958. The only answer option that corresponds to an increase in concentration is A, which states that the concentration has increased by 30%. None of the other options suggest an increase in concentration.

Since 1958, CO 2 in the atmosphere has

The question mentions the compound CO 2 has been present in the atmosphere since 1958. The only answer option that corresponds to an increase in concentration is A, which states that the concentration has increased by 30%. None of the other options suggest an increase in concentration.

Solved

Since 1958, CO₂ in the Atmosphere Has

Question 27

Multiple Choice

Since 1958, CO₂ in the atmosphere has

A) increased in concentration by 30%.
B) decreased in concentration by 30%.
C) remained at about the same concentration from year to year.
D) disappeared entirely.
E) has doubled in concentration.

Correct Answer: