What will be evidence of a galaxy moving toward earth? a. the galaxy has a loose, disorganized appearance b. the stars in the galaxy appear to twinkle . c. the galaxy appers to be acceleratin. d. the light wavelenghths coming from the galaxy are becoming shorter

Choice D). is on the right track, but it's stated incorrectly.

The wavelengths of light coming from a galaxy that's moving toward us are
shorter than they were when they left the galaxy.  When we see them, they're
shorter than they should be.

(This is called a "blue shift" in the spectrum of the galaxy, because blue is the
short-wavelength end of the spectrum of visible light.  If the wavelength of some
light somehow becomes shorter, then the color of the light changes toward the
direction of blue.)

If the source of light is moving toward us, then the wavelength we see is shorter
than it should be.  If the source is moving away from us, then the wavelength
we see is longer than it should be.  The whole trick to this is knowing what the
wavelength of the light we see should be !

Iassume the answer is 75 feet. inwards to outwards rather than outwards to inwards. probably be 75.hachures are stokes drawn in direction of the steepest slope. a series of short parallel lines drawn on a map to indicate topographic relief. it is actually called hachures on contour lines. the small marks in the center of the feature are called hachures.observe the picture attached