Answer:
The Earth also gives us clues about the levels of greenhouse gases that existed in the past. For example, ancient air bubbles trapped deep in the ice of Greenland and Antarctica reveal how much carbon dioxide was present long ago.
Explanation:I learn it in 8 grade.
Africa i believe. Please correct me if im wrong.
M = - 3
16m - 12 - m + 5 = - 52
16m - m = - 52 + 12 - 5
15m = - 45
m = - 45/15
m = - 3 ✔️
