Why is the moon's gravitational attraction different than the gravitational attraction on earth

The circumference of the Moon is smaller than Earth, therefore it has less gravity. The lack of air pressure on the Moon weakens the gravitational force of the Moon. The mass of the Moon is less than that of Earth, therefore it has a weaker gravitational force.

15.3 cos 65 degrees trig

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.