The pangaea theory supports the theory of plate tectonics because
it is based on the idea that there were several land masses when earth was first created
it is based on the idea that all the present continents were one supercontinent
it does not require scientists to support the notion that earth's plates can move
one day, earth will have one large land mass again

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

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