The noun 'access' is a non-count noun; an abstract noun, a word for a concept. Concepts are expressed in amounts or degrees such as some access, a great deal of access, etc.
The noun 'hill' is a countable noun. The plural form is 'hills'.
countable
Prawn - prawns is the plural - is a countable noun
Countable
The word hair can be both a countable noun and a non countable noun, depending on how it is used. For example in the sentence "Mary has long blonde hair", it is non countable. In the sentence "Dad is getting a few gray hairs" it is countable.
The word 'they' is not a noun. The word 'they' is a personal pronoun, a word that takes the place of a noun for specific people or things.The pronoun 'they' is the plural form, used as the subject of a sentence or a clause. The corresponding pronoun that functions as an object is 'them'. Examples:Jack and Jill are coming for lunch. They will be here at one.They will bring the baby with them.I cut some flowers from the garden. They are for the table..
The noun gravity is an uncountable noun, a word for the force that makes any two objects that have mass move towards each other; a word for the seriousness or importance of something, graveness.
countable
countable
The noun 'hill' is a countable noun. The plural form is 'hills'.
cookies are countable unless you have brain problems
countable
Shark is a countable noun.
Duck as an animal is countable, but if you mean the meat it is uncountable.
Prawn - prawns is the plural - is a countable noun
Countable
countable