Because the water cycle produces new water everyday.
A plane
You'te fishing for "Einstein", but he didn't say that. He simply figured out how much the mass of an object changes when the object moves at any speed. He left it for others to discover that his formulas are true, and that if they're true, the mass of any object is infinite at the speed of light, and since it would take infinite energy to make infinite mass move that fast, and since nobody has access to infinite energy, no object that has any mass can speed up to the speed of light, so it certainly can't go faster than that.
Dimension is the height, width & length of an object. But that object, within those 3 measurements, can have infinite variations in shape.
If an object had infinite length, it would also have infinite mass, so everything in the universe would be attracted to it, turning the entire universe into a super giant black hole. In other words, no.
When an Infinite Force is applied to the object.
Infinite.
Light travels an infinite distance until it is absorbed by an object.
Well.. yeah. There isn't an infinite amount of water.
To find the density of an object in water, first measure the mass of the object using a scale. Then, measure the volume of the water displaced by the object when it is submerged. Divide the mass of the object by the volume of water displaced to calculate the density of the object in water.
The number of potential views of an object depends on its complexity and dimensions. In general, an object can be viewed from an infinite number of angles and distances, resulting in numerous potential views.
A sphere does not have any planes inside it, as a plane is a two-dimensional flat surface, whereas a sphere is a three-dimensional object with a curved surface.
I believe the term is "grounding"