Answer:
Population ageing in Europe is caused primarily by three factors: declining fertility rates, increased life expectancy, and migration. The causes of population ageing vary among countries. I hope this helps
Explanation:
Well,
Let's just say that the Jaguar! (a certain ride in Knott's) could instantly go from zero speed to, let's say, 40 mph, and vice versa. We know (if you have ridden it) that the Jaguar! is not a straight line, as you can't say that it is always traveling at 40 mph due north (otherwise it would never be able to make a loop)!
Remember that, since velocity is a vector quantity, a change in direction will constitute a change in velocity.
Answer:
I believe it is option C.
