Why was the discovery of penicillin important? Soldiers could drain trenches during World War I.

Countries would have a way to battle the Great Depression.

The world had its first antibiotic drug to fight diseases.

The fighting in World War I could finally come to an end.

The discovery of penicillin was a major medical breakthrough. Penicillin was the first effective antibiotic that could be used to kill bacteria. This meant that cures for serious illnesses were possible even if the patient had the disease.

Explanation:

the answer is a. 250 percent.

answer; william penn's approach made the colony diverse by attracting many types of people and religions;