Question

mid-term review
the ozone layer resides. the stratosphere is less dense
than the troposphere and plays a crucial role in shielding
the earth from harmful ultraviolet (uv) radiation from
the sun. understanding the structure of the earths
atmosphere is essential for comprehending climate
dynamics, weather patterns, and the interactions that
sustain life on our planet.

earth image

skip
what makes up the earths
atmosphere?
a layer of gases that encircles our planet
air created by humans to survive
tiny organisms that fly through the air

Explanation:

The Earth's atmosphere is defined as the layer of gases surrounding the planet, which includes nitrogen, oxygen, argon, and trace gases. It is a natural, non-human-created envelope that supports life and interacts with solar radiation. The other options are incorrect: the atmosphere is not human-created, nor is it composed of tiny flying organisms.

Answer:

a layer of gases that encircles our planet