Well if you were to ask me 1 is that sporulation can make lots of more plants but i dont know any disadvntages
1. You would go faster.
2. You would eventually hit terminal velocity.
3. No longer accelerating.
#2 Depends on the weight and surface area (wind resistance)of the object
Acceleration - a change in velocity
The physical process that tend to change earth geological area and composition would be the plate tectonics.
Hope this helps out
I think A makes the most sense..
