A Prerequisite for the Survival of Life on Land Was

Question

A prerequisite for the survival of life on land was the accumulation of a protective layer of
A) O2in the atmosphere.
B) CO2in the atmosphere.
C) water vapor in the atmosphere.
D) ozone in the atmosphere.
E) bacteria in the soil.

Accepted Answer

Ozone in the atmosphere is essential for shielding Earth from harmful ultraviolet radiation. This protection allowed for the evolution and survival of life on land.