Based on the chart for the years 1870-1919, order the regions from greatest to
least in terms of how many immigrants were coming from each region. in other words, order them from biggest to smallest based on the number of immigrants.

1.oceana
2.asia
3.north and south america
4.africa
5.europe
6.africa
7.not specified

Why was the battle of gaugamela an important turning point in alexanders conquest of persian empire

Which is one reason many african nations have not prospered after gaining independence from european colonial powers? a. colonial powers sent their weakest economic advisors to the new countries, and their recommendations were flawed. b. independence left them with weak economies, and many countries have been unable to overcome or recover from these burdens. c. the desert region of the interior is inhospitable to foreign investors, and business interests focused on the coastal mediterranean cities. d. the money endowed upon independence is still tied up in the bank of england, which is hesitant to make loans to struggling nations.

Tim oxide reacts with the hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grains of sn