What layer are you looking at when you look at an image of the sun?

The sun does not have a solid surface, but the gases of the photosphere are thick enough to be visible. When you look at a typical image of the sun, you are looking at the photosphere. It is considered to be the sun's surface layer.

c)as speed changes, wavelength and frequency change.

everything changes!

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)