Geography Quiz for 16 May 2021

A new geography quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.

Question 1: Dust carried in winds from the Bodélé Depression, an ancient desiccated lake bed in the south-west corner of the central African country of Chad, has been identified as a key source of phosphorus — a vital nutrient for plant growth — in what area?