1) identify the processes that shape planetary surfaces and identify the most common planetary process 2) identify the processes that have taken place on the surface of Mars and Venus. 3)Â Â identify the surface processes that have taken place on the surface of Mercury the Moon and the moon\'s of Jupiter. 4) explain the relationship between planet size and processes that have occurred on its surface and 5) explain how geologic landscapes can be used to provide information about a planet\'s properties an characteristics. Solution One question at a time please as per chegg\'s policy 1) The four most common processes that shape the planetary surfaces are Erosion, volcanism, cratering and tectonics. Out of these, erosion is most dominant on earth. 2) Venus is often called the twin planet to Earth because it has a similar radius , has a similar mass, has a similar density and has an atmosphere. Surface has processes like craters, volcanos, fault lines and archnoids. Surface features of mars - craters, featureless terrain, polar caps and canyons. 3) same as above .