1) Mountains are important water sources, as they capture and store precipitation, feeding rivers and supporting ecosystems downstream.

2) The naming of cyclones varies depending on the region. For example, cyclones in the Atlantic and eastern Pacific Ocean are named using a predetermined list of names.

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

4) The world's first stock exchange was established in Amsterdam in 1602.