Answer:
its from the Roman Gods and some Greek
Explanation:
The one that is blue is a hotter star
When studying the temperature of a star, the scientists first look for color. If the color is more reddish, it’s cooler; if it’s yellow/orange, it is a warmer star; and if it’s a blue star, it’s a hot star
Answer:
The diameter of the Milky Way is 3,503,974,249,104 km times larger than the diameter of Saturn's rings.
Explanation:
1 light year is the distance light can travel in one year. One light year is equal to exactly to 9,460,730,472,580.8 km.
Therefore the diameter of the milky way in distance is 9,460,730,472,580.8 x 
km while the diameter of Saturn rings are about 270,000km.
Comparing both diameters
= 
= 3,503,974,249,104 km
Similarities:
- Marine and freshwater ecosystems are water, covering almost 75 percent of the earth's surface.
-The most pervasive problem affecting both freshwater and marine ecosystems is pollution.
-The process of regulating the osmotic pressure on fluids inside an organism is essential to all freshwater and marine species.
Differences:
- Marine ecosystems are more diverse than freshwater ones.
- In marine or seawater, the salinity level, or the concentration of salt is greater, but freshwater is not totally void of it.
- Only 1% of the whole water body on the earth is freshwater, the other 99% is marine water.
Note- I couldn't come up with ones for estuaries, sorry.
The answer would be C. measure distances between given points.
