Since it was dropped, it should be the speed of gravity which is 9.8 meters/second
14. D. You just have to compare the graphs!
15. C. This is the only process that produces greenhouse gases! (CO2)
16. D. This fuel source is one of the main culprits for the production of greenhouse gases, and is non-renewable.
I hope this helps you out and I hopes you learned something!
1 and A
2 and B
3 and D
4 and C
Constantine I helped to socially and politically unify the early byzantine empire by tolerating and even promoting christianity.