Find the singular noun in the given sentence
=> He walked across the hot sand as quickly as his feet would go
First, let's define singular noun
Singular means single or only one.
Noun means a name, can be a person, a thing, or a place.
Thus, the singular noun in this sentence is the word "Sand" because we're talking about the Hot sand.
He walked across the Hot "Sand", hot is used to describe the word sand.