Do you know why volcanic ash is a problem for air travelers?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Epicenter
xEpicenter : The epicenter is the point on the earth's surface vertically above the hypocenter (or focus), point in the crust where a seismic rupture begins.
Scientists in South Africa have discovered two fossil skeletons that are about two million years old. These skeletons are of a young male and adult female of a species that had never been found before....Read more