The sun is v kilometers from the upper edge of the earth's atmosphere and q kilometers from the surface of the earth.

which of the following expressions always represents the distance between the earth’s surface and the upper edge of the earth's atmosphere?

q - v

Step-by-step explanation:

v = distance between Sun and atmosphere

q = distance between Sun and surface of Earth

So the distance between the atmosphere and the surface of the earth is the difference between them.  Since q > v:

d = q - v

0/5 is 0, 2/0 is undefined, and 0/0 is indeterminate.

step-by-step explanation:

hope my answer has you!