Question

One out.
solution
tro
1. stratosphere
2. nitrogen
3. decantation
atmosphere
oxygen
circulation
solvent
ar
filtration
d
Name the following.
1. The layer of gases that surrounds the Earth:
2. The layer of air in which weather changes take place:
3. The layer of air where jet airplanes fly:
4. The gas in the air that absorbs harmful rays from the Sun:
5. A special kind of light used to kill germs:
Answer the following questions.
Why do people who climb high mountains carry oxygen cylin​

Answer 1

Explanation:

SISTA.

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