Question

she has curly hairs correct sentence

Answer 1

HEY DEAR HERE IS YOUR ANSWER
SHE HAS CURLY HAIR IS THE CORRECT ANSWER TO THIS QUESTION AS HAIR IS NEVER IN PLURAL FORM.

Answer 2

The correct answer is as follows: she has curly hair

Hair is a non-countable noun, so it cannot fall under the plural category.

To explain the above scenario is a more detailed way, you can say I will brush my hair.

But at the same time, you cannot say, I will brush my hairs.

On the other hand, you can say While I brush my hair, three hairs fell onto the table.

Here the first hair is a non-countable noun whereas the second hairs refer to the individual hairs, so it can be indicated in the plural form.