Since the early 1900's, the industrial use of water has INCREASED DRAMATICALLY.
For Joe, wearing sunglasses is controlled by avoiding blinding sunshine, whereas for Bill, wearing sunglasses is sustained by avoiding blinding sunlight.
<h3>The psychological aspect of wearing sunglasses</h3>
- There are particular periods of the day and places where there is a higher risk of sun-related eye injury. Being near water, snow, or a moving vehicle on a sunny day is like receiving a double dose of ultraviolet light. These surfaces can reflect light into the eyes.
- It also matters how big the sunglasses are. The better, the bigger. Researchers from Switzerland discovered in 2018 that larger sunglasses provided greater UV protection than smaller ones and that UV-blocking goggles provided the most comprehensive shield.
- The body's circadian clocks, which are involved in controlling sleep, food, and many other processes, have been proven to be set by light-sensing photoreceptors in the eye.
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Maturation is a threat to internal validity stemming from either long-term or short-term physiological changes occurring within the participants that may influence the dependent variable.
<h3>
What are physiological changes?</h3>
Ageing causes physiological changes in all organ systems. Arteriosclerosis develops, blood pressure rises, and cardiac output declines. Lung function is compromised, vital capacity is reduced, and expiratory flow rates are slowed.
Pregnancy causes a number of physiological changes in the mother, such as an increase in fat and total body water, a drop in plasma protein concentrations, particularly albumin, an increase in blood volume, cardiac output, and blood flow to the kidneys, and a decrease in blood pressure.
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I think that the answer would be A because it doesn’t say anything about the president or justices/judicial court. Hope this helps!
