In this diagram, the red lines represent the edges of the tectonic plates that make up the Earth's crust. For example, iron is mined from the Earth's crust in quarries. It is a finite resource ...
5 个月
Live Science on MSNEarth's crust may be building mountains by dripping into the mantleEarth's crust may "drip" into its middle layer under growing mountain ranges. This odd process, called lithospheric dripping, ...
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