oxygen can only hold two bonds with other elements.
Answer:
Natural forces don’t have a strong effect on recent global temperatures. The natural forces line begins to drop around 1950 and does not track with the observed temperature line. On the other hand, the human effects line rises upward with the observed temperatures, so it’s a stronger effect. Solar radiation falls into the category of natural forces.
Explanation: This is the exact answer so I recommend changing it up a little bit. :)
