Which of the following choices describes the correct order of events that occur during the cardiac cycle: i. The mitral and tricuspid valves open and the atria force blood into the ventricles. ii. The ventricles contract and push the blood out. iii. The heart relaxes in diastole and the atria fill with blood. iv. The ventricles fill with blood

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.