What kind of Metamorphism is this?

Quality and Intensity of reflected light exhibited by the mineral is called _________?

The tendency of minerals to break along flat planar surfaces into geometries that are determined by their crystal structure.

Some minerals may not have cleavages but may exhibit broken surfaces that are irregular and non planar.

It is consists of a mixture of gases composed primarily of nitrogen, oxygen, carbon dioxide, and water vapour.

This subsystem is not static (unchanging), but its surface (crust) is in a constant state of motion.

It is the thickest part of the Earth and it is about 25 miles (40 km) below the Earth's surface with a depth of 1,800 miles (2,897 km) into the Earth.

What theory is this?

This theory states that the solar system was formed into bodies with nearly circular orbits because of the WHIRLPOOL-LIKE MOTION in the pre solar materials.