Identify and describe two environmental challenges facing africa. which challenge do you think needs the most immediate attention? why?

Here are some of the environmental challenges that Africa is facing at the moment:
1. desertification: larger patches of African land are turning into deserts, which is obviously a huge problem because the vegetation of the continent is changing and disappearing
2. no access to water: many African nations have problems finding water in this arid country, which is a danger to their lives
3. population explosion: there are more and more Africans born, and there are not enough resources to sustain them all

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen