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?
xOrographic lift : Occurs when an air mass is forced to rise over geographic relief from a lower elevation. As the air mass rises it expands and cools adiabatically, which can raise the relative humidity to 100%, create clouds and precipitation.
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