Isn't this Chem?
a non metal and a metal
a metal transfers electrons to the non metal
the non metal gains electrons and becomes an anion (a negatively charges ion)
and the metal loses electrons and becomes a cation (a positively charged ion)
<span>Bio-indicators are macro-invertebrates that detect Water Quality based on how tolerant they are to pollution. The number of species of each type of Bio-indicator (pollution tolerant, intolerant, and semi-tolerant) will calculate the index of the water.</span>
I'm pretty sure that cells contain genes inside them.
The side of a mountain range that faces the wind often receives more moisture then the downwind of the same range
