Can a physical quantity have unit but is dimensionless?​

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Which accounts for an increase in the temperature of a gas that is kept a constant volume

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples