Do you know the main points of the theory of natural selection?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
xRefraction : Refraction is the deflection, or bending, of the ray path of a seismic wave caused by its passage from one material to another having different elastic properties; or the bending of a tsunami wave front owing to variations in the water depth along a
Sumatra experiences frequent seismic activity because it is located near the boundary of two of Earth's tectonic plates. Earthquakes occur at 'subduction zones,' such as the one west of Indonesia, when...Read more