True or false? The asteroid belt is inside the Sun’s Roche limitand thus could not overcome the Sun’s tidal forces to form aplanet.
True or false? The time interval when a specific comet’s tail islong is much less than the time interval when that comet’s tail isshort.
True or false? The asteroid belt was probably produced when twolarge, fully formed terres-trial planets collided with andshattered each other.
True or false? Most meteor showers occur when a random comet orasteroid enters Earth’s atmosphere and then breaks up into manypieces.
True or false? Most of the Kuiper-belt objects are between theorbits of Neptune and the Oort cloud.
True or false? The peculiar distribution of certain types ofKuiper-belt objects suggests the gravitational influence of a verydistant, massive “Planet Nine†that astronomers are now trying tofind.
