Correct each run-on sentence below: ❤️❤️❤️ The brain is surrounded by three membranes the skull encloses the brain and these three membranes.

The brain reaches its full size by the time a person is twenty at that time, it weighs about one-and-a-half kilograms.

The brain helps a person see, hear, touch, smell, and taste it also makes it possible for one to remember and forget, talk and write, and feel emotions.

The brain has three main parts these parts are the cerebrum, the cerebellum, and the brain stem.

A computer is like a human brain however, a computer would have to be the size of a skyscraper to perform all of the functions of the human brain.