What are the two deserts in Southern Africa

The two deserts in Southern Africa are the Namib and the Kalahari.

NAMIB - Namib is a coastal desert in southern Africa. The name Namib is of Khoekhoegowab origin and means "vast place".

KALAHARI - The Kalahari Desert is a large semi-arid sandy savannah in Southern Africa extending for 900,000 square kilometers, covering much of Botswana, and parts of Namibia and South Africa.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.