Molarity is defined as the number of moles of solute in 1 L of solution
mass fo KCl in the solution is - 5.0 g
number of moles of KCl - 5.0 g/ 74.5 g/mol = 0.067 mol
number of moles of KCl in 100 mL - 0.067 mol
therefore number of KCl moles in 1 L - 0.067 / 100 mL x 1000 mL = 0.67 M
molarity of KCl is 0.67 M
Alrighty, so, imagine you didn't or don't know much about desertification. You could imagine that it means the land becomes a desert. Knowing this I think it's easy to assume that desertification makes it harder for people in Southeast Asia to grow food or even build houses once their natural resources are destroyed from desertification.
