What challenges do people in africa face with regard to water and agriculture?

Since they do not have much water, they have little to no water to water their vegetables so that would cause a famine which would kill many people

the actual answers are a, b, and d.

muslims have taken his goods and products to different parts of asia an indonesia. sometimes just traveled and trade, but in other occasions, stayed in the place and made a living.

trade was the key for muslims economies to prosper. their commerce routes reached far places like malaysia and java in the 11th century.

another important factor for prosperity was that muslim states served as the middle point for european traders.

they used to travel by land but sailing the seas -the indian ocean- really increase the exportation of products.