In your sentence "Neither Mercury nor Pluto are as large as Earth," the word, Neither, is the subject. In classical English it would read, "Neither Mercury nor Pluto is as large as Earth." However American English prefers smooth flow and tends to ignore the rules of classical grammar. It tends to have the verb take the form of the noun or nouns immediately preceding the verb. Thus, while in Classical English, the verb would be is since the subject is Neither, American English is likely to use the verb are since it immediately follows Mercury and Pluto.
freshwater and saltwater
The simple subject in the sentence is "buttercups." It is the main noun that the rest of the sentence describes or provides information about.
The simple subject of the sentence is "demonstration." It is the main noun that the sentence is about, while "rumbled" serves as the verb describing the action associated with the subject. The phrase "From somewhere in the middle of the crowd" acts as a prepositional phrase providing additional context but does not affect the simple subject.
The simple predicate in the sentence "A scary face peered out of the window" is "peered." The simple predicate includes the main verb and tells what the subject (the scary face) does. In this case, it describes the action of the face looking out.
The term 'simple noun' is sometimes used to describe the nouns used to make a compound noun; for example the 'simple noun' bath and the 'simple noun' tub join to form the 'compound noun' bathtub. More examples:baseball (base + ball)hot dog (hot + dog)six-pack (six + pack)suitcase (suit + case)keyboard (key + board)Another use of the term 'simple noun' as an alternative for the term 'simple subject' of a sentence; for example:A big, slimy, green, worm crawled out of my apple.The entire noun phrase 'A big, slimy, green, worm' is the subject of the sentence, the simple subject is 'worm'.
The simple subject of the sentence is "you".
"It can." In that sentence, the pronoun "it" is the simple subject.
"Natives" is the simple subject.
A simple subject is a thing. If it were talking about a Baseball or a sentence the baseball is the simple subject.
The simple subject in the sentence "Did you find your wallet" is "you."
we
The simple subject in the sentence is "Cherokee."
Plane is the simple subject.
The simple subject is "rehearsals." The simple subject is one word that will directly answer the question Who? or What?
"Cherokee" is the simple subject in that sentence.
the simple subject of a sentence is what the sentence is in one word
"They" is the subject of that sentence.