What evidence indicates that plate tectonics does not occur on Venus?

Evidence suggesting that plate tectonics does not occur on Venus includes the planet's lack of large-scale fault systems and ridges typically associated with tectonic activity on Earth. Instead, Venus features a predominantly volcanic landscape with extensive lava plains and large volcanic structures, indicating a history of widespread volcanism rather than tectonic plate movement. Additionally, the uniformity of Venus's surface age, along with the absence of significant seismic activity, further supports the idea that tectonic processes similar to those on Earth are not present.