16-20 Write True if the statement is correct and change the underlined word if it is
incorrect.
16.Jupiter is the largest planet and has 67 moons.
17.The Earth's surface is made of 1/4 land and ¾ water.
18.Ganymede is the largest moon of planet Saturn.
19.Neptune has seven bright rings made of very fine particles.
20.Venus rotates from west to east once every 243 Earth days.
