Answer:
Du Bois was a doctoral student at Friedrich-Wilhelms-Universität, was the first African American to receive a Ph. D. from Harvard University (in 1895), and was awarded an honorary doctoral degree from Humboldt-Universität in 1958.
Explanation:
Fog, the other three options would be too high in the atmosphere to cause visibility problems.
ANSWER: Egyptian artists used six colours in their paintings red, green, blue, yellow, white and black. Red, being the colour of power, symbolized life and victory, as well as anger and fire. HOPETHIS HELPS!
