Geology Question:

Igneous rocks are those that form from volcanoes and volcanic activity.

Sedimentary rocks are laid down over great time in oceans and are the results of compression on dead organic matter like small sea animals and so on.

Metamorphic rock is a change that occurs to igneous or sedimentary rock in the earth's crust due to the immense heat and pressure there acting on those rocks and chemically and physically changing their properties.