Crust
in example sentence
Just as an aside, I wanted to mention, cities are only two percent of the Earth's
crust
, but they are 50 percent of the world's population.
More example sentences with word crust
And deep beneath those oceans, at cracks in the Earth's crust, you've got heat seeping up from inside the Earth, and you've got a great diversity of elements.
One of the magical things about this journey, however, is that because I'm walking over the sea, over this floating, drifting, shifting
crust
of ice that's floating on top of the Arctic Ocean is it's an environment that's in a constant state of flux.
But if you do not look at grasslands but look down into them, you find that most of the soil in that grassland that you've just seen is bare and covered with a
crust
of algae, leading to increased runoff and evaporation.
These mountains contain also a scientific paradox: They are made by quartz, which is a very common mineral on the earth's crust, and the rock made up by quartz is called quartzite, and quartzite is one of the hardest and least soluble minerals on earth.
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