Ais a region so dense that nothing, including light, can escape its gravity field. a. supernova c. black hole b. white dwarf d. supergiant select the best answer from the choices provided

black hole

Explanation:

A black hole is a region which is highly dense and very high gravitational field.

As the density of black hole is very high, so the mass of black g=hole is very large thus the force of gravitation is very large. So, even light cannot escape from the gravitational filed from the black hole.

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

1 the 4 is sig