Answer:
Hematite
Explanation:
The iron content of the mineral gives it a red hue after it has spent a long time exposed to air and moisture
Answer:
that means they are not a prey to any animal
Answer:
<em>The name for a complex group of organisms is system Hope this helps!</em>
Answer: nitrogen and hydrogen
N2 +3 H2 ---> 2NH3
Explanation: