1. Sedimentary rock
2. Trace
For number three, I'm sorry, but I'm not sure.
I hope this helped !!
Answer:
I just learned this in class lol
Explanation:
if the galaxies are going way from us, it's redshirt
if the galaxies are coming toward us, it's bkieshift but it's always galaxies redshifting from us due to galaxies moving away from us
That would be called a source or head water
Answer:
the answer is Water vapor
