The answer is race I think
Answer:
Chest pain can have causes that aren't due to underlying disease. Examples include heavy lifting, weight lifting, trauma to the chest, or swallowing a large piece of food.
Explanation:
Fat contains nine kilocalories per gram.
Answer: Exhaled air consists of 78 percent nitrogen, 16 percent oxygen, 4 percent carbon dioxide and potentially thousands of other compounds.
Explanation: Does this help???
