How do tectonic plates interact within the lithosphere? They float on the semi-fluid asthenosphere beneath. They are composec entirely of water. They are fixed and do not move. They float on the solid mantle beneath.

** They float on the semi-fluid asthenosphere beneath.

**Tectonic plates are massive slabs of the Earth's lithosphere that float on the semi-fluid asthenosphere beneath them. The interaction between these tectonic plates is responsible for various geological phenomena such as earthquakes, volcanic activity, and the formation of mountain ranges.1. **Floating on the Semi-Fluid Asthenosphere:** The tectonic plates float on the semi-fluid asthenosphere, which allows them to move relative to each other. This movement is driven by forces such as mantle convection, slab pull, and ridge push.2. **Not Composed of Water:** Tectonic plates are not composed entirely of water. They consist of solid rock and other minerals.3. **Not Fixed:** Tectonic plates are not fixed; they are constantly moving, albeit very slowly. This movement is measured in centimeters per year.4. **Not Floating on Solid Mantle:** While the tectonic plates do float on the mantle, it is specifically the semi-fluid asthenosphere layer of the mantle that allows for their movement.**