Amineral has no particular planes of weakness in its lattice structure, so it does not break along perpendicular planes. what happens when the mineral is struck?

(a) destruction

(b) fracture

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.

geographic isolation

answerclassical conditioning;

i don't have a definite answer, but i would assume not based on my experiences with my friend when we both were taking a spanish course; however, it would probably still be to your benefit to look at what questions she received, just in case. a language course and a science course differ greatly, after all.