Deforestation: The removal or clearing of forests by humans; it's like erasing an entire city off a map.
Desertification: The process by which fertile land becomes desert due to climate change or destructive land use; think about turning a lush green park into a sandy beach without water around.
Sustainable Agriculture: Farming methods that preserve long-term productivity of land and minimize pollution; it’s like using rechargeable batteries instead of disposable ones – they last longer and cause less harm to the environment.