Answer:
Galena
Explanation:
Galena usually occurs in cubic crystals. If you hit a specimen of galena with a hammer it will shatter into small perfect cubic crystals. It has a metallic luster and a black to dark gray color and streak. Galena has a hardness of about 2.5 on the Mohs hardness scale which is about as hard as your fingernail.
Answer:
Strong selection for change is acting on this gene.
Explanation:
D I would presume,money is irrelevant when your in a disaster because you can't eat,drink,or survive off of it
Exercise helps move blood and nutrients throughout your body so, it is very true.
