Our transcription: But today there is an even more compelling reason for unraveling the mysteries of the Earth's interior: the need to locate the natural resources upon which civilization depends.
Minerals, petroleum, fresh water, fertile soil.
These natural resources are not in unlimited supply, and we are consuming them faster than they are formed.
Geologists play a crucial role in this challenge.
Using their knowledge of the way the Earth works, they uncover new sources of minerals and fuels and plan ways to extract them, economically and with minimal harm to the environment.
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