Final answer:
The statement that is not accurate is D) The fourth oasis is situated in Antarctica, providing a unique polar oasis experience.
Step-by-step explanation:
The statement that is not accurate is D) The fourth oasis is situated in Antarctica, providing a unique polar oasis experience. The Sahara desert is located in North Africa, whereas Antarctica is located in the southernmost part of Earth. Sahara's oases are formed around underground water sources in North Africa and do not exist in the extreme cold and dry environment of Antarctica.