Final answer:
The rock transformation processes happening on Venus involve volcanic activity and impact cratering. The rock in the landing areas is primarily igneous, specifically basalts. The presence of relatively fresh and undegraded large craters suggests low rates of erosion or sediment deposition on Venus.
Step-by-step explanation:
The rock transformation processes happening on Venus primarily involve volcanic activity and impact cratering. The rock in the landing areas of Venus is primarily igneous, specifically basalts. This indicates that volcanic eruptions are the principal way the surface of Venus is renewed, with large flows of highly fluid lava destroying old craters and generating a fresh surface. Additionally, the presence of relatively fresh and undegraded large craters suggests that rates of erosion or sediment deposition on Venus are very low.