Which discovery gave scientists the first evidence for the theory for the theory of plate tectonics

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car