Answer:
Quartz has a hardness of 7.
Explanation:
On Moh’s Scale of Hardness, the quartz mineral takes place on the seventh hardest mineral. So the answer would be A-Equal to 7.
Answer:
B. respiratory illness
Explanation:
Air pollution causes humans to breathe unhealthy air which can lead to respiratory illnesses.
The answer is c because we just learned about it today. Viruses destroy cells
The red flowers would have to have a dominant trait over the recessive white flowers <span />
