Question

Ozone in the _______ acts as a shield protecting Earth's surface from UV radiation. Ozone in the _______ is harmful to organisms.

a. troposphere; stratosphere
b. troposphere; mesosphere
c. stratosphere; thermosphere
d. stratosphere; troposphere

Answer 1

The stratosphere contains protective ozone, while tropospheric ozone is harmful to organisms.

Step-by-step explanation:

The correct answer is d. stratosphere; troposphere.

Ozone in the stratosphere acts as a shield protecting Earth's surface from UV radiation. The ozone layer in the stratosphere absorbs a portion of the radiation from the sun, preventing it from reaching the planet's surface.

On the other hand, ozone in the troposphere is harmful to organisms. It is a component of smog and can cause health problems.