M
Because I took this class last year
But I’m also guessing
C. formal regions are known as "formal" because of the characteristics known by the people who live there and/or visit there
1. Filter The Salt Water
2. Get Water Imported From Other Countries
3. Filter Sewage Water
4. Drinking Other Edible Liquids
5. Replication Of Water Molecules
<span>A region of the Earth's atmosphere.</span>
