Cities in the region east africa a. are rapidly growing c. attract many poor people, who end up in slums b. are modernizing, with skyscrapers and other large buildings d. all of the above

The Eastern part of the African region is composed of a variety of traders and this has led to different developments and a mixture of different races including the Arabs, Africans and Persians. The cities in this area are rapidly growing, have been modernized with skyscrapers and huge buildings and also attracted many less fortunate people who ended up in slums. The answer is D.

Answer volcanic eruptionsseismic waves from earthquakes;