"Earth science" is a broad term that encompasses four main branches of study ... effects of global climate change and whether human activities are affecting global temperatures.

Its "trunk" successively forks into millions of ever-more intricate "branches," each ... Barnes told Live Science. According to Darwin, all life on earth originated from a single ancestor: in ...

Earth science concentrates on investigating ... various land formations and bodies of water. This branch of science includes research into what the globe might have looked like in the past ...