<span>United States involvement in World War II rapidly accelerated economic growth</span>
Nigeria had much division between tribal/ethnic groups vying with one another for power, and thus were not working together for a united purpose. Nigeria's wealth of natural resources also gave them much to be fighting over as the groups each sought advantage.
Botswana, on the other hand, was one of the poorest countries in the world when it gained its independence from Britain in 1966, and it avoided infighting and political corruption like that seen in Nigeria. They have been a multi-party democracy since that time -- the longest-running multi-party democracy on the African continent. Botswana enjoyed significant economic growth also as it worked together politically.
The correct answer is Schrödinger - electron cloud surrounds nucleus. Hope this helps.
<span>B. Japan was eager to learn new technology in 1900.
Contacts with the West encouraged Japan to modernize and mimic Western methods.
Under Meiji leadership, Japan began to westernize to protect themselves against Western imperial powers. They studied the industrial methods of Great Britain and the US bringing factories to Japan especially a steel industry. The country also adopted baseball and golf as common forms of leisure and national entertainment. Japan would also mimic imperial moves eventually making moves in iron rich Manchuria to gain natural resources needed for their growing steel industry. </span>