100 POINTS!! Why does the spectrum of light traveling from a distant galaxy shift from a shorter wavelength to a longer wavelength?
A. because it has to travel through dense interstellar clouds
B. because of the effect of the Earth’s atmosphere
C. because of the presence of black holes in its path
D. because of the combination of the expansion of the fabric of space over the years and the receding velocity of the galaxy

The answer is D.

Explanation:

because of the combination of the expansion of the fabric of space over the years and the receding velocity of the galaxy

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.