Newton’s third law says that for every action force there is a reaction force which is

Equal and opposite.

Explanation:

We know newton's gave three laws of motion.

1.  Every object will remain at rest or in uniform motion in a straight line until and unless an external force is not applied to change its motion.

2. The acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object.

3. For every action their is an equal and opposite reaction and both the action and reaction are opposite in direction.

So, the answer is equal and opposite.

Hence, this is the required solution.

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.

truck y has a greater velocity than truck x.