20 POINTS EASY SCIENCE ASAP
Describe why the shape of the moon appears to change over time.

The moon is changing shape as it orbits around Earth and the sun.
The moon creates more light as it changes its position around Earth.
The sun orbits Earth, giving off different amounts of light to the moon.
The sun is lighting up different parts of the moon during the moon's orbit around Earth.

The sun is lighting up different parts of the moon during the moon's orbit around Earth.

Explanation:

I'm learning about moon phases and such in school and the answer is the last one, "The sun is lighting up different parts of the moon during the moon's orbit around Earth."

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .