Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in four main ways: by the deposition of the weathered remains of other rocks (known ...

Chemical pneumonia is an unusual type of lung irritation. Pneumonia usually is caused by a bacteria or virus. In chemical pneumonia, inflammation of lung tissue is from poisons or toxins. Only a ...

One person was hurt at a Houston-area chemical plant that caught fire and sent thick plumes of black smoke skyward Wednesday for hours before emergency responders managed to knock down most of the ...

ABERDEEN PROVING GROUND, Md. — Quickly detecting the presence of chemical agents is critical to joint force survivability. Knowing that danger is near allows commanders to gain useful ...

A little over 5 million years ago, water from the Atlantic Ocean found a way through the present-day Strait of Gibraltar. According to this theory, oceanic water rushed faster than a speeding car ...