Cerium is a naturally occurring element found in the Earth's crust. It is classified as a rare earth metal and is typically extracted from minerals such as monazite and bastnasite. While cerium itself is natural, it can also be processed and refined for various industrial applications, making certain forms of cerium used in products like catalysts or alloys appear man-made.
It is natural but there are man-made imitations.
It can be made from natural or man made fibres.
Is limestone natural or man made
Man made.
Hydro energy is man made from natural resources
It is natural but there are man-made imitations.
It can be made from natural or man made fibres.
Is limestone natural or man made
natural feature
Man-made and Natural Resources
Ceramic is man-made from a natural material.
Is limestone natural or man made
Is limestone natural or man made
No "NATURAL" calamities are man made.
Satellites can be natural, and satellites can be man-made. They cannot be both. Satellites are either natural or man-made.
The oceans are NATURAL made.(made my nature).A building, some lakes, are MAN made.(made by man).
feathers are not man made they are natural