They have all been formed by sandblasting
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We need a respiratory system to live because it is made up of organs that allow us to breathe. When we breathe, we deliver oxygen to the cells in our body to get energy from our food. This helps us live.
The third type of plate boundary occurs where tectonic plates slide horizontally past each other. This is known as a transform plate boundary. As the plates rub against each other, huge stresses can cause portions of the rock to break, resulting in earthquakes. Places where these breaks occur are called faults.