The force of gravity is directly related to the mass of objects. The more mass an object has, the greater its gravitational force.
This explains why the earth has greater gravitational pull than the moon. Our planet is much bigger than the moon, this causes the moon to be attracted to the earth with a strong intensity. This is because the earth has much more mass than the moon, which allows the earth to have a greater gravitational force, and can attract the moon closer to itself. The same is true of us. The earth has more mass than humans and that is why we are attracted to its surface.
Mixtures can be physically separated by using methods that use differences in physical properties to separate the components of the mixture, such as evaporation, distillation, filtration and chromatography.
because atomic number and proton &electron number is same . neutron number is solved as atomic mass minus atomic number ( N=atomic mass - atomic number)
