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What is the purpose of testing?

Some examples of questions that appear as hypotheses but require testing include whether cooking oil can power a modified diesel engine or whether a new medication is effectiveness for treating a particular condition or disease. In research studies, simple observations of experiments are not sufficient as they are too subjective. However, providing facts that are statistically able to be tested and analyzed is a way to resolve a theory or hypothesis.\nEven though science is ostensibly an objective discipline, researchers hold opinions and stick to their ideas even in the face of contradictory ..

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What types of stars end their lives with supernovae?

Before a massive star explodes in a supernova, it becomes a red giant. The star enlarges but the core condenses. Eventually the core depletes the materials it needs to continue the nuclear fusion process, and the intense heat combines with the iron atoms and gravity to create an explosion that sends radioactive shock waves throughout the material of the star and space. A white dwarf star that is next to a red giant that undergoes a supernova and increases its mass due to the radioactive matter also explodes in the same manner.

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What is relief rain?

Relief rain is also termed orographic rain. It's generally seen in coastal regions where a chain of mountains runs parallel to the coast. The oncoming sea breeze bares moisture from the sea and carries the moisture towards the hills.\nMany parts of the West Indies and the United Kingdom receive relief rain. The western coast of India, along the Western Ghats, also receives orographic rain.

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What is the Hardy-Weinberg principle?

The Hardy-Weinberg equilibrium can be subverted by a variety of external factors, including natural selection, mating practices, gene flow, mutations and genetic drift. For example, mutations undermine the equilibrium of allele frequencies through presenting new alleles into a population. Natural selection subverts the Hardy-Weinberg equilibrium model because it changes the gene frequencies. The Hardy-Weinberg principle rarely exists in reality because disruptive factors are commonly found in nature.

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What chemical compounds are in Coca-Cola?

The most well-known chemical compound in Coca-Cola is aspartame. It is a genetically modified product that is used as an artificial sweetener. Another major chemical pound in Coca-Cola is 4-methylimidazole (4-MI). It is used to give Coca-Cola its coloring, but has also come under public scrutiny because medical studies have shown it has possible carcinogenic side effects.\nCoca-Cola contains citric acid, which is why it can be harmful to teeth if individuals drink too much of it. Orthophosphoric acid is also used as a major chemical compound in Coca-Cola in order to give it a distinct flavor. ..

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Why do you feel bloated after eating?

Many foods are known to cause bloating, such as beans, sweeteners, dairy products and whole grains. Foods rich in fiber are healthy, but they have a tendency to cause bloating, gas and constipation for some individuals. The best way to reduce bloating is for individuals to eat smaller portions and eat slowly. It also helps to reduce the amount of bloat-inducing foods from the diet, recommends WebMD.

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What causes rain water to become acidic?

Certain compounds can reach the higher layers of the atmosphere where they react with water, oxygen and other chemicals, leading to the creation of acidic pollutants called acid rain. Because sulfur dioxide and nitrogen oxides quickly dissolve in water and are brought to distant places by the wind, these substances reach faraway areas where they mix with precipitation, such as rain, sleet or snow. Power plants release sulfur dioxide and nitrogen oxides when they burn fossil fuels to generate electricity. They are considered the major culprits of pollution. Vehicles, such as cars and buses, als..

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How does the human brain work?

A full theory on how the brain functions would have to be able to include observations and data observed on molecular, cellular, synaptic, circuit, systems, computational and psychological levels; until recently, most scientists treated these levels separately. The neural complexity of the brain presents an additional challenge; the human brain contains more neurons than there are stars in the galaxy, with an additional 1 million new connections between these neurons formed daily.\nOngoing research in understanding the human brain focuses on mapping and diagramming the organ, so as to better u..

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What are some force and motion experiments?

Even though the heavier object has greater force pulling it toward the earth, the additional mass also resists acceleration to the same degree as its mass, so the objects fall at the same rate anywhere on earth.\nThe terminal velocity experiment proves that a falling object reaches a maximum rate of acceleration as it falls due to resistance. The experiment entails dropping balls of different diameters through a viscous solution in a long cylinder marked at equal distances. Normally, gravity should cause a ball to accelerate as it nears the bottom. In other words, the ball should drop faster b..

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How do sporozoans move?

The term sporozoa was coined in 1971, grouping the apicomplexa and several other types of cell together. The name came from the infectious stage called the sporozoite, which has three distinct structures in the apical complex called the conoid, the rhoptry and the micronemes. That grouping is no longer valid so the sporozoa are now called apicomplexa. These cells are specialized parasites. They contain organelles that are designed to penetrate host cells and tissues. The sporozoa feed in two ways. They either absorb dissolved nutrients that have been ingested by the host, or they consume the h..

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