What are the 3 basic types of rocks? Just as any person can be put into one of two main categories of human being, all rocks can be put into one of three fundamentally different types of rocks. Igneous rocks are crystalline solids which form directly from the cooling of magma.
fodder noun [U]. âº âfood that is given to âcows, âhorses, and other âfarm âanimals.
1 Cannon fodder, a derogatory term for expendable soldiers, now often used as a metaphor. 2  Cannon Fodder (series) , a series of video games. 3  Cannon Fodder (video game) , the first game in the series.