It has more density when it sinks because the water pushes away thats why people float they are less dense
Because in difrent materials atoms are more compact or less compact.if they are less compact then it will be easear for them to move
One of the examples is radiation and chemistry of water. Environmental science requires the capacity to integrate data from the greater part of the significant fields of science, and in addition from arithmetic.
Geology is vital on the grounds that huge scale arrives forms make geology. The presence of mountains and valleys influences how much daylight and precipitation achieve the ground, how breezy an area is, the manner by which precipitation keeps running off, and numerous different variables that figure out what plants and creatures will have the capacity to occupy a district.
CO2 + H2O + Energy are the comments