In 1953, why did scientists revise their estimate from seven minutes to just two minutes to midnight on the Doomsday Clock?

Which distinctive feature of the notre dame cathedral allowed it to accommodate its large stained glass windows? a. its barrel vaults b. its flying buttresses c. its quadrant arches d. its square bays

What types of elections are regulated by the constitution? a. the election of members of congress b. most elections at the local level c. the election of supreme court justices d. most elections at the state level

Following world war 2, how did the world's leaders promote peace and reduce poverty?