On its way to Earth, solar winds first encounter, The dominant wavelength emitted by Earth is. B AST 101: Midterm 2 Solutions Once a month b. C) billions of degrees. D. Since 1959, the global concentration of CO2 has increased by 27%. The distance between corresponding points on any two successive waves is known as the. To estimate the central temperature of the Sun, scientists C) sun spots The most likely places where stars and planetary systems are forming. D) We see many sunspots on the surface of the Sun. A D) Not all fusion reactions create electron neutrinos. A. D) reabsorbed as molecular hydrogen. Use the space below to solve this problem. E) they are caused by processes similar to those that create earthquakes, Imagine that you are trying to stop neutrinos with a lead shield. C) the Sun generates energy by nuclear fusion. Sunspots are dark patches on the surface of the Sun caused by strong concentrations of magnetic fields. 30 seconds. C) The brightening and darkening of the Sun that occurs during the sunspot cycle affects plant photosynthesis here on Earth. 14. C They have relatively lower temperatures than the brighter, background photosphere. Which of the following statements is NOT true for sunspots? *b. B) Nuclei are attracted to each other by the electromagnetic force, but this force is only strong enough to make nuclei stick when they are very close together. D Hundreds of lakes are incapable of supporting life due to high acidity. How does the Sun generate energy today? B a. 2. B) They are regions that are significantly cooler than the rest of the photosphere. Energy from the core of the Sun first travels slowly through the convection zone and then much faster through the radiation zone. C *a. Based on its surface temperature of 5,800 K, what color are most of the photons that leave the Sun's surface? The Sun continued to contract until the core became hot enough to sustain nuclear fusion. (Image credit: SOHO) The first of these refers to strong disturbances to Earth's magnetic field caused by ejected solar. is not associated with transportation a band running from upper left to lower right, d. Why are neutrinos so difficult to detect? The CFC molecules react with ultraviolet light to release carbon which then destroys ozone. ozone and VOCs. A unevenly mixed gases that act independently. B) The Sun's magnetic field, which plays a major role in the sunspot cycle, affects compass needles that we use on Earth. Why must the Sun's rate of fusion gradually rise over billions of years? a. Hydrogen fusion in the Sun requires a temperature (in Kelvin) of. About six times as many neutrinos are observed than expected from, c. Here's a detailed explanation for each option: A "star" image separates into two distinct images periodically, c. D. It is being depleted through interactions with human-produced chlorofluorocarbons. Which the following is not true of sunspots? Nuclear power plants on Earth create energy in the same way as the Sun. *b. What is shown by the small-scale changes in the shading in the figure above? B Sunspots occur in pairs. producing excess energy and therefore will not produce the. The pressure exerted by the atmosphere is not great enough to crush them. B) repel one another. B) They are holes in the solar surface through which we can see through to deeper, darker layers of the Sun. sunspots are brighter than the rest of the
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