A method of converting one unit of measurement to another, like liters to milliliters.
The early precambrian atmosphere consisted primarily of nitrogen and carbon dioxide with almost no oxygen.
<span>Today, the atmosphere contains about 20% oxygen, less carbon dioxide and similar amounts of nitrogen. </span>
<span>Photosynthetic green-leaf plants and trees are largely responsible for the change, converting carbon dioxide to oxygen.</span>
Answer:
YIKES. a bit late. Answers include 1, 2, 3
Explanation:
Answer:
I'm pretty sure it's A. BRUSH
Explanation:
If I'm wrong let ne know please
