Why was the scientific revolution a pivotal time in history?

What is an example of a secondary source?

Human rights groups in the 20th century worked to: o a. european imperial powers maintain control over their colonies. o b. convince citizens in impoverished countries to embrace nationalism. o o o o c. ensure that people around the world were protected from brutal treatment. o d. weaken the influence of international organizations like the united nations. sub

The united states and great britain moved as fast as humanly possible to open a second front against germany in world war ii. write a paragraph supporting this statements