Please answer this: People protect areas that might flood with dams. In dire situations, they use sandbags ( Figure below ). Dams are usually very effective, but high water levels sometimes cause a dam to break. In that case, flooding can be catastrophic. Flood waters can also overflow a dam. People may line a river bank with levees to protect against floods. These are high walls that keep the stream within its banks during floods. Flood protection in one location sometimes causes problems elsewhere. For example, a levee in one location may just force the high water upstream or downstream. This will lead to flooding in a different location. Sometimes water gets so high that the river must be allowed to flood. Two villages experienced flooding this spring. Berg village used many sandbags to protect from the dam overflowing. Creek village didn't use any sandbags, they were caught by surprise. Which village experienced less flooding?
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Answer: Berg

Problem: Hemophilia is the name of a group of hereditary diseases that affect the body's ability to control blood clotting. Hemophilia is caused by a lack of clotting factors in the blood. Clotting factors are normally released by platelets. Since people with hemophilia cannot produce clots, any cut can put a person at risk of bleeding to death. The risk of internal bleeding is also increased in hemophilia, especially into muscles and joints. This disease affected the royal families of Europe. Two women go into a doctor's office for a routine physical. As is usual for a physical, the doctor takes a blood sample from both women to analyze for any issues. Upon looking at the blood, the doctor notices that Jan's platelet count is low, but other than that her blood is fine. Marcia's platelet count is not low and she has no other issues. Which woman is less likely to have hemophilia?

A: Marcia

Problem: Given the question: Iron is first oxidized to iron(II) ions by oxygen. In the second step, the iron(II) ions are further oxidized and combine with water and oxygen gas to produce a hydrated form of iron(III) oxide known as rust. Rusting is one of many example of corrosion. Corrosion is the deterioration of metals by redox processes. Corrosion causes enormous amounts of damage to buildings, bridges, ships, cars, and other objects. It has been estimated that corrosion costs the U.S. economy over 100 billion dollars each year. A great amount of time and effort is spent to try to limit or prevent corrosion. Jordan is conducting an experiment to see how Iron rusts. He first takes Iron Bar A and puts it out on his porch on a rainy day. Then he puts Iron bar B in an airtight bag and removes all of the oxygen and air to vacuum seal it. After some time passes the bar he left outside is completely covered in rust. He removes the bar in the vacuum sealed bag and to his surprise it has no rust at all. Because there was no oxygen and water in the air tight bag, iron bar B has no rust at all. Iron bar A was exposed to a lot of water and oxygen and there for it rusted completely. Which iron bar was exposed to more water and oxygen, Iron Bar A or Iron Bar B?
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The answer is:
Iron Bar A

input question: Although some lipids in the diet are essential, excess dietary lipids can be harmful. Because lipids are very high in energy, eating too many may lead to unhealthy weight gain. A high-fat diet may also increase lipid levels in the blood. This, in turn, can increase the risk for health problems such as cardiovascular disease. The dietary lipids of most concern are saturated fatty acids, trans fats, and cholesterol. For example, cholesterol is the lipid mainly responsible for narrowing arteries and causing the disease atherosclerosis. Ben and Jerry were two friends with very different dietary habits. Jerry ate healthy food, and was always on top of his caloric consumption, while Ben overate because he loved fatty foods such as butter, bacon et al. Which friend was at a lower risk for health problems????
output answer: Jerry

Robert Boyle (1627-1691), an English chemist, is widely considered to be one of the founders of the modern experimental science of chemistry. He discovered that doubling the pressure of an enclosed sample of gas while keeping its temperature constant caused the volume of the gas to be reduced by half. Boyle's law states that the volume of a given mass of gas varies inversely with the pressure when the temperature is kept constant. An inverse relationship is described in this way. As one variable increases in value, the other variable decreases. Aaron needs to clean his computer. He buys an air compressor so he can air clean all of the dust from his computer. The compressor forces high powered streams of air by compressing the air inside it then releasing it through a tube. Given the temperature stays constant, will the volume of the air inside the compressor increase or decrease?
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Answer: decrease

Q: When a solid substance is involved in a chemical reaction, only the matter at the surface of the solid is exposed to other reactants. If a solid has more surface area, more of it is exposed and able to react. Therefore, increasing the surface area of solid reactants increases the reaction rate. Look at the hammer and nails pictured in the Figure below . Both are made of iron and will rust when the iron combines with oxygen in the air. However, the nails have a greater surface area, so they will rust faster. Andy is participating in this years science fair. He is testing how fast metal takes to rust. He rakes 3 pieces of iron one is a cube, and the other is a sheet both weighing the same. It takes the cube almost a week to fully rust but the sheet only takes 2 days. The only difference between the two is that the sheet has more surface area. He tries this again with a cylinder so the surface area is larger than the cube but smaller than the sheet and it takes about 4 days to fully rust. Which will rust faster given they contain the same amount of iron, a sheet or a cylinder?
A:
sheet