This is a map showing the approximate positions of the continents millions of years ago, after the breakup of the last supercontinent. Assume that South America and Africa diverged (separated) at an average rate of 3.5 cm/year (centimeters per year). If the two land masses are now 2850 km (kilometers) apart, how many years ago did they separate? A. 1.2 • 10^8 years

B. 1.0 • 10^5 years

C. 1.2 • 10^7 years

D. 8.1 • 10^7 years

E. 8.14 • 10^5 years

F. 1.05 • 10^4 years

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me