Step-by-step explanation:
**Concrete noun:** room
**Abstract noun:** peace, happiness
Concrete nouns are nouns that can be perceived by the senses. They can be seen, touched, heard, smelled, or tasted. Abstract nouns are nouns that cannot be perceived by the senses. They are ideas, qualities, or states of being.
In the sentence "A great peace and happiness seemed to fill the room," the concrete noun is "room." It is something that can be seen and touched. The abstract nouns are "peace" and "happiness." They are feelings that cannot be seen or touched.
Abstract nouns are often used in poetry and literature to create a mood or atmosphere. They can also be used to express complex ideas or emotions. Concrete nouns can be used to ground the reader in the physical world and to provide a sense of realism.
Here is an example of how concrete and abstract nouns can be used together to create a more vivid and evocative image:
> The **room** was filled with a **sense of peace** and **happiness**.
The concrete noun "room" helps the reader to imagine the physical space, while the abstract nouns "peace" and "happiness" help the reader to feel the mood of the room.