It is currently unknown whether plate tectonics are necessary for the development of life on a planet. Plate tectonics is the process by which the Earth's crust moves around, creating mountains, volcanoes, and earthquakes. This process is thought to be important for the development of life because it helps to create a variety of environments and habitats, and it also helps to recycle nutrients back into the environment.

However, there are some scientists who believe that plate tectonics may not be necessary for life. For example, some scientists have suggested that life could develop on a planet without plate tectonics if there is another way to create a variety of environments and habitats, and if there is a way to recycle nutrients back into the environment.

Ultimately, the question of whether plate tectonics are necessary for life is still a matter of debate. However, the evidence suggests that plate tectonics may be one of the key factors that contribute to the development of life on a planet.