There do exist orbits within these empty regions where objects can survive for the age of the Solar System. These resonances occur when Neptune's orbital period is a precise fraction of that of the object, such as 1:2, or 3:4. If, say, an object orbits the Sun once for every two Neptune orbits, it will only complete half an orbit by the time Neptune returns to its original position. The most heavily populated resonance in the Kuiper belt, with over 200 known objects, is the 2:3 resonance. Objects in this resonance complete 2 orbits for every 3 of Neptune, and are known as plutinos because the largest of the known Kuiper belt objects, Pluto, is among them. Although Pluto crosses Neptune's orbit regularly, the 2:3 resonance ensures they can never collide. The 3:4, 3:5, 4:7 and 2:5 resonances are less populated. COUNT 5
QSN1 What is the fraction of the most heavily populated resonance in the Kuiper belt?  ANS1 2:3 resonance QSN2 What is the best known, and largest, object in the Kuiper belt? ANS2 Pluto QSN3 How many known objects is in the most populated resonance of the Kuiper belt? ANS3 200 QSN4 What is the resonance of Pluto in the Kuiper belt? ANS4 2:3 QSN5 Which resonances are less populated in the Kuiper belt? ANS5 3:4, 3:5, 4:7 and 2:5