26Light year is a unit of:ALight intensityBDistanceCSpeedDTimeView AnswerDiscussWorkspaceReportSaveEasy
27The SI unit of radioactivity is the:ASievertBGrayCCurieDBecquerelView AnswerDiscussWorkspaceReportSaveMedium
28The SI unit of amount of substance is the:AKilogramBLitreCGramDMoleView AnswerDiscussWorkspaceReportSaveEasy
30Sound intensity level is measured in:ADecibelsBWattsCHertzDNewtonsView AnswerDiscussWorkspaceReportSaveEasy