The behavior of light with selected material … Register Login Contact us Related Posts via CategoriesPEP Social Studies 2022 Preparation GuideMinistry of Education PEP eBooksPEP Practice National HeroesPEP Social Studies Multiple Choice Test OneLuminous and Non- Luminous objectssense organ(Eye and Ear)-Ways in which technology can extend sense organ.Natural Resources- Effects of environmental problems on humans Natural Environment-Effects of human activities impact the environmentNatural Resources-Conserving the natural environmentNatural Resources-Adaptations of organisms to their environmentYou are doing well. Tell your friend, it is so good!