1. Stars on the _______ are in the normal part of theirlives, during which they produce energy by ________ in their cores.2. The inner planets are primarily made of rock and metalbecauseA) The sun’s gravity influencedheavy materials more strongly, and pulled them toward the center of the solarsystem.B) The angular momentum of thesolar nebula flung the light elements outward.C) Close to the sun it was too hotfor anything but rock and metal to condense.D) None of the above.3. A white dwarf with the same mass as the sun (1 Msun)would be about the size ofA) A city.B) Earth.C) Jupiter.D) The sun.6. A neutron star with the same mass as the sun (1 Msun)would be about the size ofA) A city.B) Earth.C) Jupiter.D) The sun.7. All pulsars are neutron stars.A) TrueB) False8. The jovian planets were able to accrete gas from the solarnebula because the availability of icy “seeds” allowed them to become massiveenough to capture it gravitationally.A) TrueB) False9. If the sun were instantly, magically replaced with ablack hole of the same mass, Earth would be doomed, getting sucked into theblack hole.A) TrueB) False
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