Question

what is the primary role of the ozone layer in earth’s atmosphere?
a to assist in cloud formation
b to shield against harmful uv rays
c to allow photosynthesis to occur
d to regulate earth’s temperature

Explanation:

The ozone layer absorbs most of the Sun's harmful ultraviolet (UV) radiation. It acts as a protective shield for life on Earth, preventing excessive UV - B and some UV - A rays from reaching the surface, which can cause skin cancer, cataracts, and damage to plants and marine life. It has no direct role in cloud formation, enabling photosynthesis, or regulating Earth's temperature in a primary sense.

Answer:

B. to shield against harmful UV rays