What challenges face many central african countries

Many challenges are that since there isnt alot of water the have to deal with hot weather and sicne hot weather kills plants that means that they dont have alot of crops grown. And that also means there isnt alot of food to provide to people. 
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Answer the above statement is correct (true);

The scientist can conclude that there is a decrease in the natural resources due to human activities. because of innovation and modernization of the environment, then there goes pollution and other bad effects that destroys the natural resources.