A ball rolls at a constant velocity. Which statement best describes why the ball’s velocity remains the same? A
The opposing forces acting on the ball are equal.

B
The ball’s inertia increases over time.

C
The ball’s kinetic energy is slowly used up.

D
Gravity is the only force acting on the ball.

no

sodium is solid at rt

im sorry i dont know

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.