Our Changing Earth

First of all, does anyone know how to make my pictures look more clear on this blog? If you have suggestions, please let me know. I would appreciate it!

Look at these crazy layers of rocks. How were they formed? If we
were standing here thousands of years ago, we would be on the ocean floor.
We would be swimming with sharks and fish and turtles. That’s
right, the level of the ocean has gone up and down over millions of years.
This area used to be completely under water. Over time, minerals and dead
plants would float to the bottom of the ocean. This layer of stuff on the
ocean floor is called sediment. When you make a cake, you put icing on top
of a layer of cake, and then more icing, and then more cake. Well, these
layers of sediment would lay on top of another, just like the layers of a cake.
Slowly, over millions of years, the weight and pressure would change the
sediment into layers of rock. Sediment + time + pressure = sedimentary rock.
So, these cliffs are made of sedimentary rock. They are at an angle and
squished like a rainbow because other incredible forces of the Earth pushed
them up and together. The cliff is exposed because wind and rain have
eroded through the rock over time. These cliffs are a reminder that the
Earth is always changing, sometimes quickly and sometimes very slowly.
What are some things that can change the Earth quickly? What are some things that can change the Earth slowly?

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