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Q47: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5757/.jpg" alt=" Which graphs of line
Q62: Observations from the Compton Gamma Ray Observatory
Q80: Which of the following can't be associated
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Q98: Why do supernova remnants have limited lifetimes
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Q102: The above picture shows the Sun's change
Q117: The United States consumes <span class="ql-formula"
Q127: Stars with ˜0.4-4 solar masses swell into
Q135: Sunspots are dark because<br>A)regions of the photosphere