Question

Which of the following is not an abstract noun?

A. Truth
B. Sky
C. Beauty
D. Faith

Answer 1

An abstract noun is a noun form in which the material form is not tangible, it is not in the form of a substance.

Therefore Truth is abstract, so is Beauty and Faith.

But Sky is not an abstract noun. It has a material form.

So option B is the correct one.

Answer 2

The noun Sky is not an abstract noun.
Sky is a concrete noun. A concrete noun is a word for something that can be seen, heard, felt, tasted or smelled.