Very few I suspect. My hope for Amal is that this scary-skinny phase is a passing one and she'll relax into her marriage and return to the lovely, wonderfully winsome creature whom Clooney fell in love with. She doesn't need to be an alpha female competing with other women. She's already won the jackpot.
Earth's crust is Earth's hard outer layer. It is less than 1% of Earth's volume. The crust is made up of different types of rocks: igneous, metamorphic, and sedimentary rocks. Below the crust is the mantle. The upper part of the mantle is made up of peridotite, a rock denser than rocks common in the crust. The crust and the upper mantle make up the lithosphere.
The crust is compositionally distinct outermost rocky layer of the Earth. What is the crust made of? The answer to this question depends on whether we want to know which chemical elements, minerals or rock types it is made of. It may be surprising... This page may be out of date.