which sentence is a lie

Decipher these diminutive interrogations.

1. There is no such thing as a complete vacuum, as subatomic particles inhabit any and every corner of the universe simultaneously in perpetuity.
2. Absolute zero is theoretically unreachable, as it would require an infinite amount of cooling to make atoms stop completely.
3. Black holes gravitational force is so immense, it equates to an infinite amount of density at its hypothetical "singularity", the singularity being the central point in the void.
4. I drank water today.

It is 4.

Third one

The first one, since only living beings can "inhabit" somewhere.

@Thiruvananthapuram said in #1:

Decipher these diminutive interrogations.

1. There is no such thing as a complete vacuum, as subatomic particles inhabit any and every corner of the universe simultaneously in perpetuity.
2. Absolute zero is theoretically unreachable, as it would require an infinite amount of cooling to make atoms stop completely.
3. Black holes gravitational force is so immense, it equates to an infinite amount of density at its hypothetical "singularity", the singularity being the central point in the void.
4. I drank water today.
   its 4. actually quite interesting that absolute zero is unreachable.