a natural substance is something that is found again and again in many different forms eg. salt (also a reoccurring substance)
An element is a substance in its pure and natural form.
Natural gas, gasoline, and kerosene are some fuels made from petroleum.
Diamonds.
Naturally occurring means that the substance is natural and is not in any way made by mankind.
Crystal
An element is a substance in its pure and natural form.
sunlight
Yes.
Natural gas, gasoline, and kerosene are some fuels made from petroleum.
Natural gas is a physical substance.
Natural Resource
Yes, stone is a natural substance, not man-made.
Natural gas is a physical substance.
No natural substance is equal in hardness to a diamond.
a magnet Actually named magnetite, but it is a natural magnet.
Diamond
A diamond