The wastelands around us cause various problems directly as well as in directly.

1. Unhygenic Conditions-the wastelands are often used as areas for dumping wastes.these wastes are  not treated and are thrown recklessly . These untreated wastes often breed mosquitos which cause epidemic and other chronic diseases like dengue, cholera etc
2. Land Exploitation-The condition of land being left fallow and barren also causes over exploitation of land resources.
 

 Rohan