Explanation

"Mobile" is a noun in this sentence because it refers to a physical object, specifically a mobile phone.

Nouns represent people, places, or things.

Explanation

"Park" is a noun because it refers to a specific place.

Nouns name places, people, things, or concepts.

Explanation

"River" is a noun because it represents a specific place, in this case, the body of water where the action is taking place.

Nouns name people, places, things, or ideas.

Explanation

"Kounain" is a noun, as it refers to a specific person with whom Noor is playing.

Nouns are used to name individuals, objects, or ideas.

Explanation

In the sentence, "athlete" is a noun.

A noun refers to a person, place, or thing, and "athlete" here represents a person skilled in sports.

Explanation

"Stalemate" can function as both a noun and a verb.

As a noun, it refers to a situation where no progress can be made (often used in chess).

As a verb, it means to bring about a stalemate or deadlock.

Explanation

Noun Clause: A noun clause functions as a subject, object, or complement in a sentence.

In this case, "why she was late for the meeting" is explaining the content of what was explained, functioning as the direct object of the verb "explained."

Explanation

Compassion: This is an abstract noun, representing a quality or feeling.

Explanation

Collective: "Mob" is a collective noun, representing a group of people.

Explanation

The inverted commas word "herd" is a collective noun.

It represents a group of animals considered as a single entity, in this case, a group of sheep.