Did you know that about 250 million years ago, almost all life in the ocean became extinct?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
xPlate tectonics : The theory supported by a wide range of evidence that considers the Earth's crust and upper mantle to be composed of several large, thin, relatively rigid plates that move relative to one another.
Scientists have discovered two fossil skeletons of an ancient human ancestor – a species related to humans that had never been found before. The fossils, a young male and an adult female, formed almost...Read more