Answer:
A
Explanation:
Today, the atmosphere holds about 21 per cent oxygen. ... When the first simple organisms appeared in the oceans more than 3.5 billion years ago, the atmosphere was mostly nitrogen, hydrogen, water vapor, and carbon dioxide
I believe its C because it seems the most reasonable.
Answer:
condoment
Explanation:
i found this because this is something you put on yoir burger or fries
Answer:
c) Emus ostriches and meas are similar to the glyptodon
Explanation:
Only answer that supports the idea of evolution.
Answer:
c. birds are baited by the metal hook...
Explanation:
