A Yale study reveals that elevated marine iodine concentrations disrupted the stabilization of Earth’s ozone layer, delaying ...
Helvellyn stands is one of England's highest mountain, standing at 949 metres above sea level in the Lake District in north-west England. It is made up of igneous rocks which were formed 450 ...
Any material carried or moved by a glacier is called moraine. There are three different types of moraine: ...