Well you dont have any following statements for me to answer, i can say one thing, weight and energy are the same because depending on if you are going to gain or lose weight, loseing weight causes more energy usage out of you and if you are gonna lay off and gain weight, it causes less energy being used out of you, energy depends on the weight
Cross-contamination refer to a condition where microorganisms are unintended transferred from one subject to another and causing harmful effect to them
One thing that is NOT an example of cross-contamination is : food is prepared one day in advance
Depending on height but averagely 2,200
Hope this helps :)
It needs atleast 20 minutes a day in order to have an effective cardio exercise.
If you really wanted to have a good cardio exercise that will benefit you and have a good health and healthy lifestyle, then you have to spare your 20 minutes a day.