The heart rate is different while dancing, studying and riding a bike because the amount of blood needed for each activity is different. Blood pumps as fast as it as needed by the cells, which is why riding a bike has fast heart rate while studying has a regular heart rate.
Answer: It is a noninfectious disease caused by environmental factors.
Explanation: Mercury is a type of toxic metal that comes in different forms within the environment. Therefore, it is not caused by bacteria, genetic factors, or pathogens. But from the environment.
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Answer:
Body Mass Index
Explanation:
body fat based on height and weight