1) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active.

2) The fastest land animal is the cheetah, capable of reaching speeds up to 70 miles per hour (113 kilometers per hour) in short bursts.

3) Insurance premiums are the payments made by policyholders to insurance companies in exchange for coverage.

4) The word "music" contains two vowels: U and I.