21The Ramsar Convention is concerned with the conservation of:AForestsBDesertsCWetlandsDOceansView AnswerDiscussWorkspaceReportSaveEasy
22Which gas is released from paddy fields and cattle and is a strong greenhouse gas?AHeliumBOxygenCMethaneDNitrogenView AnswerDiscussWorkspaceReportSaveEasy
23Animals that eat only plants are called:ACarnivoresBDecomposersCOmnivoresDHerbivoresView AnswerDiscussWorkspaceReportSaveEasy
24Acid rain is mainly caused by:ACarbon monoxideBOxygenCSulphur dioxide and nitrogen oxidesDWater vapourView AnswerDiscussWorkspaceReportSaveEasy
25Biodiversity hotspots in India include:AThe Gangetic plains onlyBThe Deccan Plateau onlyCThe Western Ghats and the HimalayaDThe Thar Desert onlyView AnswerDiscussWorkspaceReportSaveEasy