Question

what are highly compressed and altered rocks?​

Answer 1

Answer:  

The highly altered and compressed rocks are called metamorphic rocks. These rocks are formed  when the sedimentary and igneous rocks undergo chemical changes owing to reasons like intense pressure and temperature.

Explanation:  

Due to high temperature and pressure changes, the rocks get changed or transformed into  metamorphic rocks. The chemical and structural changes take place result in highly compressed and  altered rocks. Some of the examples include genesis, quartzite, marble, slate, and schist.

Answer 2

Metamorphic are highly compressed and altered rocks.

Explanation:

• The metamorphic rocks are those rocks that have been altered from the primary rocks and are some times harder than the igneous rocks and are formed by many mountain chains and are exposed at the surface after the softer layers gets eroded away.

• Examples of the slate and quartzite as the hardest and most resistant of all the rocks, these rocks can be formed by the tectonic collisions and altered by the changes in the pressure, temperatures, and chemical processes.

Learn more about the highly compressed and altered rocks.

• brainly.in/question/11671225 answered by Presentmoment.