[Q]: I have a new situation: Henry and Tiffany are performing chemical reactions in their high school chemistry class. Henry performs his reactions with the use of a catalyst. Tiffany performs the same reaction with no catalyst present. But I can use this background: A catalyst is a substance that increases the rate of a chemical reaction. A catalyst is a substance that increases the rate of a chemical reaction. The presence of a catalyst is one of several factors that influence the rate of chemical reactions. (Other factors include the temperature, concentration, and surface area of reactants.) A catalyst isn't a reactant in the chemical reaction it speeds up. As a result, it isn't changed or used up in the reaction, so it can go on to catalyze many more reactions. What is an answer for this question: Will Henry's catalyst be used up after it catalyzes some reactions, yes or no?
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[A]: no

[Q]: I have a new situation: Croatia and Italy were two countries of similar size and population located on opposite shores of the same sea. Croatia based its economy on tourism and fishing, while Italy based its economy on conventional agriculture. Both countries had thriving economies, but they both polluted the sea in different ways. But I can use this background: Marine pollution is a generic term for the entry into the ocean of potentially hazardous chemicals or particles. The biggest culprits are rivers and with them many agriculture fertilizer chemicals as well as livestock and human waste. The excess of oxygen-depleting chemicals leads to hypoxia and the creation of a dead zone.Marine debris, which is also known as marine litter, describes human-created waste floating in a body of water. Oceanic debris tends to accumulate at the center of gyres and coastlines, frequently washing aground where it is known as beach litter. What is an answer for this question: Which country didn't cause the formation of hypoxia?
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[A]: Croatia

[Q]: I have a new situation: A team of biologists has been monitoring the deer population in the state of Wisconsin. They use past data and current conditions to predict if the population will grow quickly or slowly and recommend how many hunting licenses the state should issue during hunting season to keep the population stable. But I can use this background: In nature, when the population size is small, there is usually plenty of food and other resources for each individual. When there is plenty of food and other resources, organisms can easily reproduce, so the birth rate is high. As the population increases, the food supply, or the supply of another necessary resource, may decrease. When necessary resources, such as food, decrease, some individuals will die. Overall, the population cannot reproduce at the same rate, so the birth rates drop. This will cause the population growth rate to decrease. What is an answer for this question: If the deer birth rates went up this year when compared to last year does that mean that resource availability went up or down?
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[A]: up

[Q]: I have a new situation: Two nearby villages are experiencing earthquakes. Bow village gets a lot of earthquakes annually, while Arrow village gets only a few. But I can use this background: Almost all earthquakes occur at plate boundaries. All types of plate boundaries have earthquakes. Convection within the Earth causes the plates to move. As the plates move, stresses build. When the stresses build too much, the rocks break. The break releases the energy that was stored in the rocks. The sudden release of energy is an earthquake. During an earthquake the rocks usually move several centimeters. Rarely, they may move as much as a few meters. Elastic rebound theory describes how earthquakes occur ( Figure below ). What is an answer for this question: Which village experiences more plates moving?
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[A]:
Bow