I believe it to be C
Explanation: The concentration of carbon dioxide in Earth’s atmosphere is currently at nearly 412 parts per million (ppm) and rising. This represents a 47 percent increase since the beginning of the Industrial Age, when the concentration was near 280 ppm, and an 11 percent increase since 2000, when it was near 370 ppm.
Answer: C
Explanation: This is because of a nice thing called guessing
Answer:
B.bonds are broken and new bonds are formed
Not sure about any others but I believe 3 goes with B
