Discontinuity
To change density there are three ways. You can change the shape, mass or volume of the object
When mass increases and volume stays constant, the density increases. When volume increases and mass stays constant the density decreases. When they both change, then the density will depend on the rate of change of mass and the rate of change of volume.
Density does not change regardless of where the object is. It is a constant.
Density usually changes when an object is heated or cooled - especially in the case of gases, or when there is a change of phase.
It is unchanged. The density is the mass divided by the volume, and as both of these numbers are halved the density does not change.
A boundary marking an abrupt change in density can be observed in various physical phenomena such as the interface between different fluids like oil and water or the transition between different layers of rock in the Earth's crust. This boundary typically occurs when there is a sharp contrast in the composition or properties of the materials on either side, leading to a sudden change in density at the interface. This transition can have implications for the behavior of waves, currents, or other physical processes that interact with the boundary.
At the mantle-core boundary, there is a change in density and composition of the material. The increase in density and the solid state of the core allow P waves to travel through, with some refraction due to the change in velocity.
Abrupt means quick or fast, so the phrase abrupt change means an altered course that is made fast or quickly.
The motorcyclist made an abrupt lane change.
The Gutenberg Discontinuity is the mantle/core boundary within Earth's interior where there is an abrupt change in the seismic waves (generated by earthquakes or explosions) that travel through Earth. It is at a depth of about 1,800 mi (2,900 km) below the surface.
The government made an abrupt change in their policy.
Yes, as changes in salinty affects the density of sea water, another of putting it would be that a Halocline is simply a region below the surface of a body of water where there is a significant increase or decrease in density.
The Gutenberg Discontinuity is the mantle/core boundary within Earth's interior where there is an abrupt change in the seismic waves (generated by earthquakes or explosions) that travel through Earth. It is at a depth of about 1,800 mi (2,900 km) below the surface.
The boundary between two sedimentary rock layers is called a bedding plane or stratigraphic boundary. It represents a break in the deposition of sediment, marking a change in the environment or conditions under which the rocks were formed.
feedback loops
yes
It is between the Crust and the upper mantle