Define drought and desertification.

Here are the definitions for drought and desertification:

• Drought: A prolonged period of unusually low rainfall, resulting in a severe shortage of water for human activities, agriculture, and the environment.
• Desertification: The process by which fertile land degrades and becomes desert-like, often due to a combination of climate variations (like drought) and human activities such as deforestation, overgrazing, and unsustainable farming practices.