Edwin Hubble discovered in 1929 that the distances to far away galaxies were generally proportional to their redshifts. This was seen as strong evidence in favor of
A) relic radiation.
B) the radio spectrum.
C) the Big Bang theory.
D) steady-state theories.

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

What is a good example of instantaneous speed

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects