The dot and cross diagram shows that a water molecule is made up of one oxygen atom joined to two hydrogen atoms, so the formula of water is H 2 O. A nitrogen molecule is made up of two nitrogen ...

CD163 might not be the most exciting name in the world, but behind it lies one of the body's most important defense receptors ...

Ocean acidification, caused by the ongoing absorption of atmospheric CO₂, poses threats to marine ecosystems and biodiversity ...