Answer: A
Explanation:a force is baisicly a vector that has a certain direction and magnitude the more magnitude it has in the direction its pulling the faster the object effected by it will go to it. it seldom is the stregnth with most forces it just depends on magnitude
Answer:
were introduced into American geography in the 1920s by Carl Sauer
Yes. Velocity discribes both speed and direction of motion
I'm pretty sure it's China.
Hope this helps you!