The atmosphere is made out of 78% of nitrogen and 21% of oxygen with 1% of other gases (Carbon dioxide, Argon,and Helium)
Answer:
Surfaces that typically come into contact with food are called food-contact surfaces. Examples include utensils, cutting boards, flatware, tables, and highchairs. Also included are surfaces onto which food may drip, drain, or splash, such as the inside of a microwave oven or refrigerator.
The least amount of time listed that is sufficient to benefit from cardio exercise is 30 min
