Which of these statements about Africa is NOT true?

• A.Over two-thirds of Africa lies within the tropics, Africa is therefore a warm continent in which snowfall is everywhere unknown
• B.Africa has a high rate of population increase
• C.Africa is the least unbanized continent although urbanization started early in Africa
• D.The forest regions of Africa are richer in hardwood than softwood timber
• E.Africa has several large rivers but they are of very limited use for navigation