Which statements apply to density? check all that apply.

> density is a chemical property of an object.
> the density of an object is constant.
> density is a derived unit of measure.
> density is the sum of the mass and volume of an object.
> the density of an object determines whether it will sink or float.

The only statement on the options that says true about density is:
> The density of an object determines whether it will sink or float.

Why?
Density is a physical property of an object.
Density is not derived as a unit of measure. It is derived from 2 fundamental units: kg and m.
The Density of an object is not constant.
Density is calculated by dividing the mass by the volume of an object.

Three reasons of the deaths of native americans: new illnesses that their immune systems couldn't cope with. genocides so the settlers could have the good land.starvation from lack of rations and poor infertile land on resevations