MEGA Exam Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) In 1965, scientist Arno Penzias and Robert Wilson discovered microwave radiation emanating uniformly from all directions in the sky. This discovery provided important evidence
supporting: - Correct Answers ✅The Big Bang Theory of
the origin of the Universe.Which of the following observations of the universe supports the presence of large amounts of dark matter in galaxies? - Correct Answers ✅Light from background source bends as it passes through a galaxies gravitational field.The Milky Way is classified as which of the following types of galaxy - Correct Answers ✅spiral The first probe that landed on Venus survived on the surface for about 23 minutes. Prior to this landing, three other probes failed to reach the surface while still functioning because the atmospheric conditions were more extreme than scientist had expected. A probe that landed on Venus 12 years later survived for 127 minutes. Which of the following modifications would most likely help probes survive longer on the Venetian surface with successful missions? - Correct Answers ✅A change in material composition The event horizon of a large black hole is best described as the - Correct Answers ✅Boundary form which no light can escape the black hole 1 / 3
MEGA Exam Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Which of the following statements best explains why the sun does not produce heavier elements such as iron? - Correct Answers ✅The sun is not massive enough to sustain the high temperatures necessary to form heavier elements.Calculations based in the suns brightness, temperature, and rate of fuel consumption indicates that the age of the solar system is approximately how many years? - Correct Answers ✅4.6 billion Years Which of the following forces is the primary cause for the production of sunspots present on the solar surface? - Correct Answers ✅a. Electromagnetic Fields Due to the absence of an atmosphere on Mercury, daily temperatures range form 100 K to 700 K. which of the following phenomena contributes to this extreme variation in temperature? - Correct Answers ✅Mercury rotates about its axis only 1.5 times for each time that it orbits the sun, which means that days and nights are both very long In the early 17th century, Johannes Kepler described the orbits of the planets around the sun as ellipses. Which of the following is one important consequences of the elliptical nature of planetary orbits? - Correct Answers ✅a. The speed of each planet varies as it orbits around the sun. 2 / 3
MEGA Exam Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Which of the following statements best explains why the moon lacks a magnetic field? - Correct Answers ✅The moon rotates very slowly and has a small solid core that does not contain much iron or nickel.The range between high and low tides changes significantly over time. This changes in the tidal range is primarily the
results of: - Correct Answers ✅The additive effect of the
gravitational pulls of the sun and moon Which of the following statements describes the evidence that led to the discovery that Earth has a core that is partially liquid? - Correct Answers ✅P- waves were refracted and S- waves stopped, indicating that a boundary with distinct physical properties exist below the mantel.Approximately 4 billion years ago, which of the following was a characteristic of Earths early oceans that had a significant effect the rock cycle? - Correct Answers ✅A low pH In the 1980s, scientist discovered an iridium-rich clay layer at the boundary between the Cretaceous and Tertiary periods.This layer is now believed to have been produced by which of the following major events in Earths history? - Correct Answers ✅A major meteor that caused a worldwide mass extinction.
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