Plz answer in detail and plz ASAP.

Explanation:

The enormous desert spans 11 countries: Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Western Sahara, Sudan and Tunisia. The Sahara desert has a variety of land features, but is most famous for the sand dune fields that are often depicted in movies.

answer; the correct answer to the above statement is (biosphere); ///

ask an adult bc this is too hardcore