Answer:
I think it might be B
PLS TELL ME IF I'M WRONG!
More nitrogen in the atmosphere leads to NITRIC ACID RAIN.
When nitrogenous fertilizers are used on the farm, some gases are released into the atmosphere including nitric oxide. These gases rises up into the atmosphere, mix with rainfall.
Nitric oxide react with rainfall to form nitric acid and it falls as acidic rain.
About 0.67 km per minute 20km / 30 min
Well if the ball was to turn, slow down, or speed up, that would be acceleration.
