Explain how within the crust helps support the concept of a constantly changing planet?

explain how within the crust helps support the concept of a constantly changing planet? and what do those changes in th crust do to change life on earth/ helppp! plzzExplain how within the crust helps support the concept of a constantly changing planet?The rock record is a record of repeated changes in the environment: If this was not a dynamic planet with constant change the rocks would be uniform and unchanging. This is not the case: We see sedimentary successions that were originally laid down horizontal tilted and contorted by tectonics, we see metamorphic rocks that could only have formed in the core of huge mountain chains exposed at the earth;s surface. We see shells from marine organisms in rocks forming the highest peaks of the Alps. These all represent changes in the environment and they are all related to the constant dance of the continents due to plate tectonics.Explain how within the crust helps support the concept of a constantly changing planet?I'm hungry for pie now.Explain how within the crust helps support the concept of a constantly changing planet?the crust floats on a mantle of molten rock, ever so slowly, the crust shifts and cracks, creating the ever changing tectonic processes of our planet.