When the ph level of a substance is between 7 and 14, it is considered a(n) a. acid b. solution c. base d. mineral

The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. If a pH is lower than 7 it indicates the solution is an acid. If it is above 7 it is a base or Alkaline. If a pH is a 7 it is neutral. Strong acids have lower pHs than weak acids and strong bases have lower pHs than weak bases. A neutral solution is neither an acid or base. It has a pH of 7. Scientists use a pH number to show the strength of an acid or base. A pH is measured by dipping litmus into a solution such as water or other substances. Chemicals that are very basic or acidic are called "reactive." Automobile batteries have acids which are reactive and contain a stronger form of some of the same acid that is in acid rain. Also, household drain cleaners often contain lye, a very alkaline that is reactive. Vinegar and lemon juice are acidic substances and laundry detergents and ammonia are basic. Pure water is neutral which means that it has a pH of 7.0. It is not reactive.

THEREFORE IT WOULD BE B) SOLUTION

Pilgrims is the answer

The correct answer is a. when they started making tools that will them in cultivating lands, they could raise crops and that made them attached to one place for a longer period of time. after that, they started domesticating animals and building their own permanent settlements that resemble the ones we have today.