Please answer this: I can use this background: Common causes of heat exhaustion include:[1] Hot, sunny, humid weather Physical exertion, especially in hot, humid weather Due to impaired thermoregulation, elderly people and infants can get serious heat illness even at rest, if the weather outside is hot and humid, and they are not getting enough cool air. Some drugs, such as diuretics, antihistamines, beta-blockers, alcohol, ecstasy, and amphetamines can cause an increase in the risk of heat exhaustion.[2] Especially during physical exertion, risk factors for heat exhaustion include:[1] Wearing dark, padded, or insulated clothing; hats; and/or helmets (for example, football pads or turnout gear) Having a higher percentage of body fat Dehydration Fever Some medications, like beta blockers and antipsychotic medicines[2] Now, I have a new situation: Two groups of people were out in the sunny, humid weather of Illinois. Group One wore black clothes and helmets, and Group Two wore white, light clothing. Both groups were comprised of people of all ages and fitness levels and exercised in the sun for an hour. Answer this question please: Which group had more dehydrated people experiencing heat illness?
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Answer: Group One

Please answer this: I can use this background: Shown in the Figure below is a cylinder of gas on the left that is at room temperature (300 K). On the right, the cylinder has been heated until the Kelvin temperature has doubled to 600 K. The kinetic energy of the gas molecules increases, so collisions with the walls of the container are now more forceful than they were before. As a result, the pressure of the gas doubles. Decreasing the temperature would have the opposite effect, and the pressure of an enclosed gas would decrease. Now, I have a new situation: A chef is preparing ribs for his clients dinner tonight. He decides to use a pressure cooker to help keep them nice and tender. He loads the ribs in the pressure cooker and closes the latches which are relatively easy to clamp down. After cooking for a while the latches seem much tighter and the lid much harder to move. Answer this question please: Will adding heat to the sealed pressure cooker increase or decrease it's internal pressure?
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Answer: increase

Please answer this: I can use this background: Enzymes increase the rate of chemical reactions by reducing the amount of activation energy needed for reactants to start reacting. One way this can happen is modeled in the Figure below . Enzymes aren't changed or used up in the reactions they catalyze, so they can be used to speed up the same reaction over and over again. Each enzyme is highly specific for the particular reaction is catalyzes, so enzymes are very effective. A reaction that would take many years to occur without its enzyme might occur in a split second with the enzyme. Enzymes are also very efficient, so waste products rarely form. Now, I have a new situation: Two scientists, Cathy and Mark, are working on a new project. They want to make a new polymer using two chemicals. Mark mixes the two chemicals together on the first day and after a week of waiting he has managed to create a new polymer. While he is happy about the result he feels a week is way to long. Cathy has an idea. She decides to try adding an enzyme to the chemical mixture, The mixture only takes seconds to form the new polymer and the enzyme she used is in tact floating on top of the now completed polymer. She decides to test even further and uses the left over enzyme on another batch of chemicals. The reaction occurs in seconds again and the same amount of enzyme is left floating on top of the polymer for her to use again in the next batch. Answer this question please: Will using the enzyme in the chemical mixture increase or decrease the speed of the reaction?
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Answer:
increase