The Colosseum was man-made, constructed by the Romans between AD 70 and 80. It is an iconic amphitheater built from concrete and stone, designed for public spectacles such as gladiatorial contests and mock sea battles. Its engineering and architectural features reflect the advanced skills of Roman builders.
Colosseum.
Potassium is naturally made
naturally occurring.
Thallium is a naturally occurring element in the Earth's crust. It is not a man-made element.
No. It's man-made.
No - it's a man-made object. But the stuff it is made from is naturally occurring.
Phosphorus is naturally occurring. It is found in rocks
yes, concrete is man made, stone is naturally ocurring.
No - it's a man-made object. But the stuff it is made from is naturally occurring.
Naturally occuring.
No it is naturally occuring
No its naturally produced