Science · PSLE / Light and sound Multiple choiceExam revisionStandard 7 · PSLE What is noise pollution? Aunwanted, harmful loud soundBsilenceCbird songDmusic played softly Check my answer Source: Thuto360 practice Report a problemWhat's wrong?The marked answer is wrongThe question is unclearA spelling or typing mistakeThe picture is wrong or missingSomething elseAnything to addSend More like thisWhat kind of image does a flat mirror form?Multiple choicePSLELight and soundWhy is 'AMBULANCE' written backwards on the front of an ambulance?Multiple choicePSLELight and soundWhat kind of material is frosted glass?Multiple choicePSLELight and soundYou see lightning and hear thunder 3 seconds later. Sound travels about 340 m/s. About how far away is the storm?Multiple choicePSLELight and sound
