Which of the following is INCORRECTLY spelled.

Piramid

The word Piramid is incorrectly spelled. The correct spelling is Pyramid.

Here are the words and their correct spellings:

• Petroleum is a naturally occurring liquid composed of hydrocarbon deposits.
• Essential is something that is absolutely necessary.
• Pyramid is a solid structure with a square or triangular base and four sloping sides that meet at a point at the top.
• Familiar is something that is well-known or commonly encountered.