The noun 'rubber' is an uncountable noun as a word for a substance.
Units of an uncountable (mass) noun for a substance is expressed by amounts or measures called partitive nouns, for example, a ton of rubber or shipment of rubber.
The noun 'rubber' is a countable noun as a word for a type of footwear, a condom, or a pencil eraser. The plural noun is 'rubbers'.
Transport is both countable and uncountable as a noun.
The noun 'steel' is an uncountable (mass) noun, a word for a substance.
Countable
The noun 'animal' is a countable noun. The plural form is animals.
Prawn - prawns is the plural - is a countable noun
Transport is both countable and uncountable as a noun.
The noun 'steel' is an uncountable (mass) noun, a word for a substance.
Shark is a countable noun.
countable
Countable
The noun 'daytime' is an uncountable noun.
The noun 'animal' is a countable noun. The plural form is animals.
Prawn - prawns is the plural - is a countable noun
Pasta is a countable noun
Countable
The word 'violence' is an uncountable noun.
The gerund painting is a countable noun, as in "There are 12 paintings in this room."