Answer:
A) air
Explanation:
air is a mixture of various gases ...
It is the abdominal cavity that contains the digestive organs.
Answer:
Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body. Protein must be broken down into amino acids. Starches break down into simple sugars. Fats break down into into fatty acids and glycerol.
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Answer is B or the ball because other options don’t have any velocity and it makes the kinetic energy zero for them .the formula is k=1/2mv^2
