21The first human in space was:ANeil ArmstrongBYuri GagarinCAlan ShepardDValentina TereshkovaView AnswerDiscussWorkspaceReportSaveEasy
22A solar eclipse happens when:AThe Moon comes between the Sun and EarthBMars blocks the SunCEarth comes between the Sun and MoonDThe Sun comes between Earth and MoonView AnswerDiscussWorkspaceReportSaveEasy
23Which planet is closest to the Sun?AMercuryBMarsCEarthDVenusView AnswerDiscussWorkspaceReportSaveEasy
24Which is the largest planet in the Solar System?AEarthBJupiterCNeptuneDSaturnView AnswerDiscussWorkspaceReportSaveEasy
25The first artificial satellite was:AVostok 1BAryabhataCExplorer 1DSputnik 1View AnswerDiscussWorkspaceReportSaveEasy