Elementary: We use 'there is' and 'there are' to explain that something is present, or it is in a particular place.

There is and there are

used to say that something exists or happens in the singular form

used to say that something exists or happens in the plural form

A singular noun names one person, place, thing, or idea, while a plural noun names more than one person, place, thing, or idea.

(of a word or form) denoting more than one, or (in languages with dual numbers) more than two.

a statue, building, or other structure erected to commemorate a notable person or event.

a large public garden or area of land used for recreation/ fun activities

a large self-service shop selling foods and household goods.

a large natural elevation of the earth's surface rising abruptly from the surrounding level; a large steep hill.

an institution/ place for educating children

an establishment beside a road selling fuel for motor vehicles; a petrol station was also known as a filling station

an area of land and its buildings, used for growing crops and rearing animals

a building or group of buildings where goods are manufactured or assembled chiefly by machine.
"a clothing factory"