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9.1. In Wikipedia, look up "Asteroid", scroll down to "Size distribution" and
answer this question: What is the size range of asteroids? - 🧠 ANSWER
✔✔c. 1-1,000 km
9.2. In Wikipedia, look up "Regolith" and answer this question: What is
regolith? - 🧠 ANSWER ✔✔c. A blanket of unconsolidated, loose deposits
covering solid rock.
9.3. In Wikipedia, look up "Asteroid", scroll down to "Distribution within the
Solar System", and answer this question: Where are asteroids located? - 🧠
ANSWER ✔✔a. The asteroid belt
b. Co-orbital with Jupiter
c. Near Earth's orbit
***d. All the above
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, 9.4. In Wikipedia, look up "Kirkwood Gap" and answer this question: A
Kirkwood gap is a gap or dip in the distribution of the semi-major axes of
the orbits of main-belt asteroids; in other words, certain orbits in the
asteroid belt that have few asteroids. What causes these gaps in the
asteroid belt? - 🧠 ANSWER ✔✔a. They correspond to the locations of
orbital resonances with Jupiter that make such orbits unstable.
9.5. In Wikipedia, look up "Asteroid Belt" and answer this question: The
four largest asteroids (Ceres, Vesta, Pallas, and Hygiea) constitute about
what percent of the mass of the asteroid belt. - 🧠 ANSWER ✔✔c. 50%
9.6. In Wikipedia, look up "Asteroid Belt" and answer this question: The
total mass of the asteroid belt is approximately what percent of the mass of
the Moon? - 🧠 ANSWER ✔✔a. 4% (1/25th the mass of the Moon)
9.7. In Wikipedia, look up "Comet" and answer this question: Which of the
following is a characteristic of comets? - 🧠 ANSWER ✔✔a. They are
relatively small icy bodies.
b. They release gas when the warm as they approach the Sun.
c. They have highly elliptical orbits around the Sun.
***d. All the above
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