While observing a planet through a telescope, a scientist observes a natural satellite orbiting the planet. what is the best classification for this satellite?

Answer;

The moon

The best classification for this satellite is the moon.

Explanation;

The moon is the second brightest object in the sky after the Sun.

It moves around the Sun at the same time it moves around the Earth. The Moon orbits the Earth because of the pull of Earth's gravity. The Moon orbits around the Earth once per month.

(75°f − 32) × 5/9 = 23.889°c

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.