Discoveries.
The plural form of 'discovery' is 'discoveries'.
There is one concrete noun in the sentence: scientists.The plural noun 'scientists' is a concrete noun as a word for people.The other nouns in the sentence (theory, relationships, discovery) are abstract nouns as words for concepts (ideas).
The plural of rose is roses. The plural possessive is roses'.
The plural of 'bunch' is bunches.The plural of 'ant' is ants.The plural of 'batch' is batches.The plural of 'day' is days.The plural of 'chimney' is chimneys.The plural of 'tomato' is tomatoes.The plural of 'umbrella' is umbrellas.The plural of 'donkey' is donkeys.The plural of 'sky' is skies.The plural of 'foot' is feet.The plural of 'show' is shows.
applied is does not have a plural but is apply it does have a plural.
The plural form of 'discovery' is 'discoveries'.
Discoveries
There is one concrete noun in the sentence: scientists.The plural noun 'scientists' is a concrete noun as a word for people.The other nouns in the sentence (theory, relationships, discovery) are abstract nouns as words for concepts (ideas).
The plural of 'this' is 'these' and the plural of 'that' is 'those'.
Love is a discovery, not an discovery.
Isthmi is plural. There are actually two plural forms. I will list them from singular to plural. Isthmus - Singular Isthmi - Plural Isthmuses - Plural
The plural of rose is roses. The plural possessive is roses'.
The plural of 'bunch' is bunches.The plural of 'ant' is ants.The plural of 'batch' is batches.The plural of 'day' is days.The plural of 'chimney' is chimneys.The plural of 'tomato' is tomatoes.The plural of 'umbrella' is umbrellas.The plural of 'donkey' is donkeys.The plural of 'sky' is skies.The plural of 'foot' is feet.The plural of 'show' is shows.
applied is does not have a plural but is apply it does have a plural.
The plural form of can is cans.
The plural is a regular plural, attics.
Boron discovery is the discovery of Boron.