Libya, Algeria, and Tunisia belong to which continent?

Libya, Algeria, and Tunisia belong to which continent?

Explanation

The UN subregion of North Africa consists of 7 countries at the northernmost part of the continent 

  1. Algeria
  2. Egypt
  3. Libya
  4. Morocco
  5. Sudan
  6. Tunisia
  7. Western Sahara

North Africa is an economically prosperous area, generating one-third of Africa's total GDP.