Abstract Nouns

Abstract nouns are words that represent ideas, concepts, qualities, or states that cannot be perceived through the five senses. They are intangible and cannot be touched, seen, heard, tasted, or smelled. Abstract nouns express emotions, feelings, thoughts, or abstract concepts.

Identifying the Abstract Noun

To determine the abstract noun in the given options, we need to understand the definition and characteristics of abstract nouns. Let's analyze each option:

a) Birds: Birds are concrete nouns as they are tangible and can be perceived through the sense of sight and sound.

b) Greed: Greed is an abstract noun as it represents a quality or state of being greedy, which cannot be perceived through the senses. It expresses an emotion or a concept.

c) Clown: Clown is a concrete noun as it represents a person who can be seen and heard. It is a tangible object.

d) Elephant: Elephant is a concrete noun as it represents a living being that can be seen, touched, and heard. It is a tangible object.

Conclusion

Among the given options, the abstract noun is "greed" (option B). It represents a concept or quality that cannot be perceived through the senses. The other options (birds, clown, and elephant) are concrete nouns as they represent tangible objects that can be perceived through the senses.