Two students stand close to each other Why do they not get pulled closer to each other due to the gravitational pull they exert on each other

Two students who stand close to each other don't get pulled closer as a

result of gravitational force because the magnitude of the force is small.

Gravitational force acts on all objects on Earth but the force exerted is very

small as a result of the masses of the students being very small as to when

compared with that of the earth.

The large difference in mass of the student and earth is the reason why the

effect of the force is very little and unable to move them closer.

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there gravitational force is very less to pull the weight of a person.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.