1. Department of Environmental Science, College of Natural and Computational Sciences, Wolaita Sodo University, Wolaita Sodo, Ethiopia
2. Department of Rural Development and Agricultural Extension, College of Agriculture, Wolaita Sodo University, Wolaita Sodo, Ethiopia
3. Department of Environmental Studies and Community Development, School of Environmental Studies, Kenyatta University, Nairobi, Kenya
4. Department of Physics, College of Natural and Computational Sciences, Wolaita Sodo University, Wolaita Sodo, Ethiopia