Answer: d. Confounding
Explanation:
In the context of a scientific study such as this one, a confounding factor is one that has influence on both the exposure and event variable(s), which may lead to over- or underestimation of the direct relationship between them (if any).
For instance: In this example, researchers may have had reason to believe that male gender is associated with both higher risk of obesity (the exposure variable) and adult-onset asthma (the event variable). If gender is not taken into account, one may claim that the finding of an association between obesity and asthma is simply an artifact due to the high proportion of male patients (likely to present with both). <em>Controlling</em> for that variable (such as by matching, as in this example) allows researchers to test for this hypothesis.
The physical activity health guidelines require metabolizing about <u>150 to</u> <u>400</u> calories during moderate physical activity on most days of the week.
The intake of calories in the food provides the energy to do work. A very low intake of calories may result in weight loss and too much of it can make you obese. Physical activities like exercise, cycling, and jogging are necessary to burn calories.
According to the physical activity health guidelines, adults must do moderate physical activity for at least 2hr a week. And 1 hr intense aerobic exercise a week to burn the calories.
Learn more about Physical activities here,
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Answer: it is true
Explanation:
Thaey also help to save people in less disastrous situations.
