Photo AI
Desertification (i) Explain one natural cause and explain one human cause of desertification - Junior Cycle Geography - Question C - 2016
Question C
Desertification (i) Explain one natural cause and explain one human cause of desertification. (ii) Describe two effects of desertification.
Worked Solution & Example Answer:Desertification (i) Explain one natural cause and explain one human cause of desertification - Junior Cycle Geography - Question C - 2016
Step 1
Explain one natural cause and explain one human cause of desertification.
Answer
One natural cause of desertification is climate change. As global temperatures rise, there are significant alterations in precipitation patterns. Extended periods of drought can lead to the drying out of soil, reducing its fertility and, over time, resulting in desertification.
A prominent human cause of desertification is deforestation. The removal of trees for agriculture or urban development decreases the soil's ability to retain moisture. This can lead to increased soil erosion and degradation, further exacerbating desertification.
Step 2
Describe two effects of desertification.
Answer
One effect of desertification is loss of biodiversity. As habitats are destroyed and degraded, many plant and animal species lose their homes, leading to a decline in biodiversity and the extinction of some species.
Another effect is reduced agricultural productivity. As soil quality diminishes due to erosion and nutrient loss, crop yields decline. This can lead to food shortages and increased poverty among populations reliant on agriculture.