What major accomplishment in space occurred in 1969? A. American astrophysicists were the first to determine the speed of light

B. American and Soviet astronauts worked together to orbit the Earth.

C. American astronomers discovered the size and temperature of the sun.

D. American astronauts became the first people to ever land on the moon.

What explains the increase in life expectancy in botswana? a. the increased availability of jobs and an improved economy b. access to antiretroviral drugs, hiv/aids education, and widespread hiv/aids testing c. a series of military takeovers that stabilized the political system and led to education reform and increased literacy rates d. a recent military coup that led to an improved healthcare system select the best answer from the choices provided.

•the impact of enlightenment ideals on the development of economic, political, and religious structures in the western world

Which statement about submarine use in world war i is true? the allies never found a way to counter german submarine warfare. germany’s use of submarines affected the united states’ decision to enter the war. only the germans used submarines in world war i.