The difference between a pH of 5 and a pH of 8 is Group of answer choices

A) 3x

B) 30x

C) 100x

D) 1,000x

Would really appreciate it, i have an idea but not completely sure

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?