Question

[OSS.01]Which of these statements is most likely correct about Newton's law on gravity?

It does not explain why objects exert gravitational force.
It does not describe the relationship between objects and forces.
It can be changed by new experimentation and investigation.
It can be used to prove that theories on gravity are non-observable.

Answer 1

I think the first one is the correct answer

note: are not always 100% true

Answer 2

Answer:

It does not explain why objects exert gravitational force.

Explanation:

As per the Newton's law of gravitation he said that two objects of different masses are placed at some distance from each other then the gravitational attraction force between two masses is

(1) proportional to the product of the two masses

(2) inversely proportional to the square of the distance between two masses

so it is given by

$F = \frac{Gm_1m_2}{r^2}$

so here as per Universal law of gravitation Newton gives an experimental result about the gravitational force while the theoretical  explanation why the gravitational force exist is not explained by Newton's law of gravitation

So correct answer will be

It does not explain why objects exert gravitational force.