Final answer:
Desertification is linked to human activities like overgrazing of cattle, and is impacted by climatic changes. It leads to the degradation of fertile land, converting it into less productive desert biomes. The correct answer is option 3 associated with poor agricultural practices, including overgrazing of cattle.
Step-by-step explanation:
Desertification is a process associated with the degradation of land in arid, semi-arid, and dry sub-humid areas, primarily due to human activities and climatic variations. One of the primary human activities linked to desertification is poor agricultural practices, such as overgrazing of cattle. This can lead to soil erosion, loss of fertile land, and ultimately, the expansion of desert biomes. Desertification is not associated with decreases in temperature or increases in precipitation but rather with an increase in aridity. It also does not result in the conversion of deserts into grasslands; instead, it typically converts fertile land into less productive deserts.
Desertification is primarily driven by climatic changes such as the worldwide increase in temperature and reduced levels of precipitation, as well as by human practices that may degrade the land. Over time, the expansion of deserts, such as the Sahara, is altering ecosystems and impacting the lives of millions of people.
The correct option that is associated with desertification is 'Associated with poor agricultural practices, including the overgrazing of cattle'.