Volcano. The lower 48 states have about 40 active volcanoes.
More Science Trivia
Russia. The finback pelycosaurs was the dominant animal during the early Permian age.
32 Degrees F.. On the Celsius scale, the temperature at which water freezes is 0.
The Age Of Mammals. The Cenozoic Era is the most recent of the three classic geological eras and is ongoing.
Force. In physics, force is an influence that causes a free body to experience a change in speed.
Universe. The universe includes all physical matter and energy, planets, galaxies and stars.
Gold. Gold provides the standard for most monetary policies.