I want to find out how do u get the average number of pulse between three school students

To check your heart rate, place two fingers on your wrist, below your thumb. Apply gentle pressure until you can feel a slight beat against your fingertips. Count how many beats you feel in 15 seconds. Then multiply that number by 4 to determine your heart rate, which is measured in beats per minute.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.