Respiration breaks food into energy using__?
water
oxygen
carbon dioxide
nitrogen

Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is