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:
yes absolutely
Explanation:
most foods have some form of bacteria in them and your immune system fights off the bad bacteria but it also keeps the good bacteria from affecting you in a bad way so yes you would have food allergies if your immune system didn't work
<span>This might be a perception thing and that
the facial hair is growing at the same rate as the hair on your head.
Since you're constantly grooming your facial hair, even 1mm growth will
affect the appearance whereas a 1mm growth on the hair on your head
makes no difference because your hair is already long.</span>
Red blood cells carry oxygen.