Question

When we breathe in, we inhale many gases,
including oxygen. What happen to the gases
that the body can't use?
They are exhaled

They are changed into oxygen by
the lungs

The circulate through the body and
are disposed of later

They are absorbed into the
digestive system and used to
create energy​

Answer 1

Answer:

Explanation:

When we breathe in, we inhale many gases, includding oxygen. What happens to the gases that the body can`t use? They are exhaled. They are changed into oxygen by the lungs. They circulate through the body and are disposed off later. They are absorbed into the digestive system and used to create energy.