O D. Internal factors.
This question was on Brainly itself.
American discovered that they could grow their own food because of the native americans who taught them how when they arrived here .
Answer:
a=v/t
Explanation:
Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2).