Writing 6 Read the sentences. Do they compare or contrast the planets? Write compare or contrast. 1 Mercury is too small and hot to have an atmosphere. Venus, however, has a very dense atmosphere. 2 Both Uranus and Neptune are more than two billion kilometres away from the Sun. 3 It takes less time for Mercury and Venus to orbit the Sun than Earth. 4 Although Venus is further away from the Sun than Mercury, it is hotter. 5 Earth has got one moon. However, Uranus has got 27 moons. 6 Both Jupiter and Saturn have got rings, however Earth and Venus haven't.