It is the level of intensity of cardio during cardio exercise and has different ranges. 60% to 70% ,low intensity this is a warm up for beginners. 70%-80% moderate intensity, it is in this zone that improves body's ability to transport oxygen throughout the body and conditioning one's heart.80% - 90% it in this zone also that allows us to burn more calories.
A celery stick with peanut butter and 1/2 of apple juice but if your only talking about 1 thing then 1/2 of apple juice bc he could easily choke on the celery
