I think it is the Microscope. Robert Hooke was a scientist who came up with the law of elasticity, the Hooke's law as well his pioneering work using the microscope to document observations of a variety of samples in his book. Hook published a book Micrographia, an accurate and detailed record of his observations through his microscope.
Answer:
A.became immoral or unjust
Explanation:
The Constitution Of the United States of America
Many German soldiers were no longer willing to fight.
