1) Bats are the only mammals capable of sustained flight.

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

3) The concept of political parties allows for organized groups to mobilize support, articulate policy positions, and compete for political power through elections and political campaigns.

4) Banks provide various financial products, including savings accounts, checking accounts, credit cards, mortgages, and investment services.