Geography Quiz for 31 January 2016

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: What is an alternative name for a hydrolaccolith, a mound of earth-covered ice found in the Arctic and subarctic that can reach up to 70 metres (230 ft) in height and up to 600 m (2,000 ft) in diameter?