Why was the invention of penicillin so important in the context of world war 2

How are the perspectives presented in the excerpts similar? they show the disappointment and fear mission control workers feel when the lunar module develops problems. they show the huge investment of time and energy mission control workers dedicated to the lunar module. they show how mission control workers view the lunar module as if it is the workers' very own child. they show the relief and excitement mission control workers feel when the lunar module lands on the moon.

Brainliesttt !me : ) -what is invisible warfare?

Which president was known for the statement “speak softy and carry a big stick? ”