You need to specify what kind of hemispheres you're interested in! There are many different hemispheres, such as:

* The Earth: The Earth is divided into the Northern Hemisphere and the Southern Hemisphere.

* The Brain: The brain is divided into the left hemisphere and the right hemisphere.

* The Body: The body is divided into the upper hemisphere and the lower hemisphere.

Please tell me what you are referring to so I can give you the correct answer.