"excavating Earth’s surface to reach veins of clean coal" would be the best option because this is done fairly close to the top of the Earth's surface. It's a controversial and dangerous practice.
Answer:
Inventions we use every day that were actually created for space exploration
Artificial limbs.
Scratch-resistant lenses.
Insulin pump.
Firefighting equipment.
DustBusters.
LASIK.
Shock absorbers for buildings.
Solar cells.
Explanation:
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Hope this helped Stay safe!!</em></u></h2>
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