Support system. your work out partner is supporting you by working out with you.
Answer:
Gloves
Explanation:
It is unsanitary to touch other peoples food with your hands.
Answer:
During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor. These natural hydrocarbon fuels come from once-living organisms and are made from carbon and hydrogen, which release carbon dioxide and water when they burn.
