Question

how has desertification impacted life in sub-saharan africa? (1 point)
○ it increases the number of animal species due to the land that has been cleared.
○ it decreases the number of floods since there are less trees to trap rainfall.
○ it leads to scarcity of farmland and causes food shortages.
○ it creates a larger variety of agricultural products since there are less trees to take out nutrients in the soil

Explanation:

• Option 1: Desertification degrades land, reducing habitats, so animal species decrease, not increase. Eliminate.
• Option 2: Fewer trees mean less interception of rainfall, increasing flood risk (as runoff increases), not decreasing. Eliminate.
• Option 3: Desertification turns fertile land to desert, reducing farmland. Less farmland leads to lower food production, causing shortages. This matches the impact.
• Option 4: Desertified soil is less fertile, reducing agricultural productivity and variety, not increasing. Eliminate.

Answer:

It leads to scarcity of farmland and causes food shortages.