Problem: I read this background article the other day: Another major cause of extinction is global warming , which is also known as global climate change. During the past century, the Earth's average temperature has risen by almost 1C (about 1.3F). You may not think that is significant, but to organisms that live in the wild and are constantly adapting to their environments, any climate change can be hazardous. Recall that burning fossil fuels releases gasses into the atmosphere that warm the Earth. Our increased use of fossil fuels, such as coal and oil, is changing the Earth's climate. Any long-term change in the climate can destroy the habitat of a species. Even a brief change in climate may be too stressful for an organism to survive. For example, if the seas increase in temperature, even briefly, it may be too warm for certain types of fish to reproduce. I am facing a new situation today: Two neighboring islands Grey island and Sand island both contributed to global warming by their actions. Grey island contributed way more because they were more careless. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which island contributed more to extinction?

A: Grey
Problem: Given the question: I read this background article the other day: One reason radiation is dangerous is that it can't be detected with the senses. You normally can't see it, smell it, hear it, or feel it. Fortunately, there are devices such as Geiger counters that can detect radiation. A Geiger counter, like the one in Figure below , has a tube that contains atoms of a gas. If radiation enters the tube, it turns gas atoms to ions that carry electric current. The current causes the Geiger counter to click. The faster the clicks occur, the higher the level of radiation. I am facing a new situation today: Johnny has two old drums that used to carry nuclear in his garage. He is curious to know about any radiation that the drums are giving off so he purchases a Geiger counter and returns home. Upon returning home, he puts each drum in the opposite corner of his garage and then runs the Geiger counter over the barrel. Drum A causes Johnny's Geiger counter to make a slow but steady noise. When Johnny walks over to Drum B, his Geiger counter starts making rapid sounds. Johnny thinks maybe he should not have invested in these barrels. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which drum is giving off more radiation?
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The answer is:
Drum B
input question: I read this background article the other day: Electric potential energy comes from the position of a charged particle in an electric field. For example, when two negative charges are close together, they have potential energy because they repel each other and have the potential to push apart. If the charges actually move apart, their potential energy decreases. Electric charges always move spontaneously from a position where they have higher potential energy to a position where they have lower potential energy. This is like water falling over a dam from an area of higher to lower potential energy due to gravity. I am facing a new situation today: David is interested in how electricity works. One day he had two electric charges to investigate, charge A and charge B - both of the charges were negative. He also had two electric fields, field C and field D. He noticed that electric charges were moving from field C to field D. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: If charge A and charge B are close, would they repeal or attract each other????
output answer: repeal
I read this background article the other day: While people have been able to prevent certain viral diseases by vaccinations for many hundreds of years, the development of antiviral drugs to treat viral diseases is a relatively recent development. Antiviral drugs are medications used specifically for treating the symptoms of viral infections. The first antiviral drug was interferon , a substance that is naturally produced by certain immune cells when an infection is detected. Over the past twenty years the development of antiretroviral drugs (also known as antiretroviral therapy, or ART) has increased rapidly. This has been driven by the AIDS epidemic. I am facing a new situation today: The Doctor studied two teams of people. Team N had no viral infections, while Team W had many people with HIV among its members. Obviously, team N had fewer health issues. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which team had more people receiving indirect benefits from the fight against the AIDS epidemic?
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Answer: Team W
Q: I read this background article the other day: Many different chemical substances cause cancer. Dozens of chemicals in tobacco smoke, including nicotine, have been shown to cause cancer ( Figure below ). In fact, tobacco smoke is one of the main sources of chemical carcinogens. Smoking tobacco increases the risk of cancer of the lung, mouth, throat, and bladder. Using smokeless tobacco can also cause cancer. Other chemicals that cause cancer include asbestos, formaldehyde, benzene, cadmium, and nickel. I am facing a new situation today: Walter and Jesse, two coworkers, are sitting at a hotel bar having a drink together after a long day at a conference when they start discussing their smoking habits. Walter shares that he has regularly smoked a pack of cigarettes for the past ten years. Jesse says he only smoked a couple cigarettes during college while he was drinking and isn't a regular smoker. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which man is more likely to have lung cancer?
A: Walter
[Q]: I read this background article the other day: While people have been able to prevent certain viral diseases by vaccinations for many hundreds of years, the development of antiviral drugs to treat viral diseases is a relatively recent development. Antiviral drugs are medications used specifically for treating the symptoms of viral infections. The first antiviral drug was interferon , a substance that is naturally produced by certain immune cells when an infection is detected. Over the past twenty years the development of antiretroviral drugs (also known as antiretroviral therapy, or ART) has increased rapidly. This has been driven by the AIDS epidemic. I am facing a new situation today: Two pharma students read about antiviral and antibacterial drugs. Manny read about antiviral drugs, while George read about bacteria and antibacterial drugs. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which student didn't read about antiretroviral drugs?
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[A]:
George