Answer:
Carbon/Radiocarbon Dating
Explanation:
Carbon dating yields some of the most accurate results for aging samples around 50,000 years old, and can be as accurate as within a few decades of the exact year. Carbon dating uses the relative proportions of the carbon isotopes carbon-12 and carbon-14 that the fossil/sample contains to pinpoint an almost exact time.
Answer : Option A) The liquid turns to a gas.
Explanation : When the hydrogen bonds between the molecule of water breaks, it produces hydrogen and oxygen gases. As the intermolecular forces of attraction between the molecule is broken, it gets enlarged and therefore the phase changes into gas. Breaking of intermolecular forces of attraction between the atoms of the molecule results into phase transition.
Answer:
In the explanation.
Explanation:
Electroencephalogram (EEG). Due to his problem with staying awake, Akira’s doctor has scheduled an <em>overnight sleep study</em>. Such studies often include the diagnostic method of Electroencephalogram (EEG), which can help to assess brain activity both during awake and sleep hours. This procedure will help to identify if Akira’s condition is a result of pathological electrical activity in his cerebral cortex. For example, if he is suffering from epilepsy.
Stimulants. In order to improve his condition at school, Akira consumes <em>coffee and energy drinks</em>, which belong to the category of stimulants. Such drinks have this property largely because they contain caffeine. Caffeine is known for its ability to increase the activity of the central nervous system. This type of stimulant is a natural compound of coffee and tea plants and thus is a very widely available stimulant. Energy drinks are reported to contain caffeine in much more significant amounts than coffee and tea.
Melatonin. Melatonin is a hormone produced in the human brain. It is responsible for sleep and wakefulness patterns. Because Akira is a student, he is likely to use electronic devices, like smartphones and computers, for many hours per day. The wide array of scientific research has connected trouble sleeping to the use of electronic devices because their screens emit blue light. The blue light suppresses the production of melatonin in the brain and can cause sleep disorders like insomnia. After asking all the necessary questions about Akira's lifestyle and habits his doctor might advise to reducing exposure to the blue light.
Narcolepsy. Narcolepsy is a neurological disorder that is characterized by an <em>inability to stay awake.</em> The medical examination and study that Akira will undergo will help his doctor to identify if Akira is suffering from narcolepsy. Narcolepsy is a rare condition that can be easily mistaken for secondary hypersomnia, which is on the contrary very common. Secondary means that it is a result of the other (primary) condition or disorder, like obesity, sleep apnea or clinical depression. Once Akira’s doctor will run all necessary diagnoses and will identify the cause of Akira’s condition, he will receive a respective treatment.
First, Zinn makes it clear that Columbus and his Spanish backers were motivated primarily by a desire to discover new sources of wealth. This explains their approach to dealing with the native peoples they encountered. As Zinn says, “The information that Columbus wanted most [from the natives] was: ‘Where is the gold?'” The second point would be his description of the effects of the policies of Columbus and the Spanish officials that followed him to the Caribbean. They led to the almost total extermination of the native peoples who inhabited the region. The famous account by Bartolome de Las Casas is cited to make this point all the more clear. The final three points are really related to historiography, and the uses of the past, and serve to set up the main thrust of Zinn’s overall narrative. First he shows that previous historians of Columbus’s actions in the New World such as Samuel Eliot Morison have effaced the unflattering parts, and that this has been deliberate: “the historian’s distortion…is ideological; it is released into a world of contending interests, where any chosen emphasis supports…some kind of interest.” This leads to his next point, which is that the “quiet acceptance of conquest and murder in the name of progress” has disturbing effects in our own time, making it easier for us to countenance the bad things people do with power today. Finally, Zinn argues that the whitewashing of history and celebration of the actions of men like Columbus is part of a larger historical approach that is told from the “point of view of governments, conquerors, diplomats,” and other powerful men. Zinn proposes a different approach, one which he will pursue in A People’s History, that focuses on people from the “bottom up.” So the aim of his treatment of Columbus is as much to set up his overall narrative approach as to tell an unimportant, or unfamiliar story about the man.
Zinn wrote that, "we must not accept the memory of states as our own. Nations are not communities and never have been." Also, he writes, "I don't want to romanticize them." He says he's blunt about the history and doesn't act like, for example, Columbus killed a bunch of people, but, oh, he was a hero! And, "I don't want to invent victories for people's movements."
Answer:
(Why) Even though I just met you why?
Explanation:
