I have a new situation: Beth and Jane studied chemistry in school. However, Beth studied noble gasses while Jane decided to know more about alkanes. But I can use this background: Saturated hydrocarbons are given the general name of alkanes . The name of specific alkanes always ends in - ane . The first part of the name indicates how many carbon atoms each molecule of the alkane has. The smallest alkane is methane. It has just one carbon atom. The next largest is ethane, with two carbon atoms. The chemical formulas and properties of methane, ethane, and several other alkanes are listed in Table below . The boiling and melting points of alkanes are determined mainly by the number of carbon atoms they have. Alkanes with more carbon atoms generally have higher boiling and melting points. What is an answer for this question: Which student learned less about ethane?
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Answer: Beth

I have a new situation: There are two exact copies of planets, Necrulon and Krankor, including the animals and plants on each planet. Recently though, people on Krankor have been wanting to have more space for new buildings. In order to accommodate these new buildings, they have started to cut forests and clear land. The people on Necrulon, however, decided to keep their forests and land rather than further industrialize. But I can use this background: Because of human activities, there is more carbon dioxide in the atmosphere today than in the past hundreds of thousands of years. Burning fossil fuels and has released great quantities of carbon dioxide into the atmosphere. Cutting forests and clearing land has also increased carbon dioxide into the atmosphere because these activities reduce the number of autotrophic organisms that use up carbon dioxide in photosynthesis. In addition, clearing often involves burning, which releases carbon dioxide that was previously stored in autotrophs. What is an answer for this question: Does Necrulon have more or less autotrophic organisms than Krankor?
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Answer: more

I have a new situation: Two students were learning about atmospheres and planets. Dan learned about the atmosphere of Earth, while Nate learned about planet Venus and its atmosphere. But I can use this background: Clouds on Earth are made of water vapor. Venus's clouds are a lot less pleasant. They are made of carbon dioxide, sulfur dioxide and large amounts of corrosive sulfuric acid! The atmosphere of Venus is so thick that the pressure on the surface of Venus is very high. In fact, it is 90 times greater than the pressure at Earth's surface! The thick atmosphere causes a strong greenhouse effect. As a result, Venus is the hottest planet. Even though it is farther from the Sun, Venus is much hotter even than Mercury. Temperatures at the surface reach 465C (860F). That's hot enough to melt lead! What is an answer for this question: Which student learned less about the planet with a strong greenhouse effect?
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Answer:
Dan