How would you go about solving these?(show work)

The answer is false because: gravitational force is independent of medium and depends only on the masses of the two objects and the distance between them

At a given pressure, gas particles with smaller masses move faster.

Six base units were recommended: the metre, kilogram,second, ampere, degree kelvin (later renamed kelvin), and candela. in 1960, the 11th  cgpm  named the system the international system of units, abbreviated si from the french name, le système international  d'unités.

The answer is