School, Teacher, and Playground are naming words (nouns).
Slowly is an adverb – it tells how something is done, not a name of a person, place, or thing.
Solar energy can be an alternative source of power.
Correct answer C
A noun clause functions as a noun and acts as the object of the verb "believe."
"Everything that you read in the newspaper" serves as the direct object of "believe," making it a noun clause.
The name of any particular person, place or thing is called Proper Noun.
Iran, Islamabad, Samsung, K2 etc. are examples of Proper Noun.
A collective noun refers to a group of people, animals, or things considered as a single unit.
"Army" represents a group of soldiers, making it a collective noun.
Naming words are nouns — names of people, animals, places, or things.
Pen, car, rabbit are all nouns, making them the correct group of naming words.
The suffix “-tion” is commonly used to form nouns from verbs.
Example:
Inform → Information
Create → Creation
So, "-tion" forms nouns.
Words like class, jungle, army, forest are called Collective Nouns.
Class refers to a group of individuals (students) treated as a single unit — that's a collective noun.
It represents more than one person but is used as a singular noun.
Adding the suffix “er” to a verb (teach) forms a noun meaning "one who performs the action."
So, teacher is a noun.