There are two primary models of the universe. One is the expanding model, which says that the universe is Constantly increasing in size. The other is, the steady state model, which says that the universe is approximately Constant in size and shape. What evidence would you expect to see if the expanding model were correct?

One is the expanding model, which says that the universe is Constantly increasing in size.

Explanation:

I believe its that

In a short way, if an object is moving away, the light that comes from that object will have a red shift (it seems a little more reddish than it actually is)

If the object is moving towards us, the light that comes from the object will have a blue shift (it seems a little more blueish than it actually is)

Those shifts can be observed from the Earth, so from that is safe to conclude that the expanding model is actually correct.

Explanation:

a. as the temperature increases, the kinetic energy of the gas molecules increases & the molecules move faster & further away from each other.

b. if you decrease the temperature of a fixed amount of gas at constant pressure, the combined gas law reduces to charles's law. in this case, volume will also decrease.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.