Which layer of the atmosphere has the greatest density of gas molecules?

Its decreasing because of illnesses

The answer is d if you are on edgenuity. 

Your answer is d. silli hope this ! : ) i left an explanation down below if you need it: a sill forms when hot magma squeezes between layers of rock to form a hardened sheet of rock. a sill is basically a tabular sheet intrusion between old layers of sedimentary rock, volcanic beds, or in the direction of foliation inherent in metamorphic rock. the word sill means a concordant intrusive sheet.

If it’s a full eclipse it’s a total if half way it’s partial and if creates a ring it’s annular