Final answer:
Seafloor spreading is the best example of something that results from tectonic plate movement.
Step-by-step explanation:
Seafloor spreading is the best example of something that results from tectonic plate movement. Seafloor spreading occurs at mid-ocean ridges, where plates are moving apart, allowing molten rock to rise and solidify, forming new oceanic crust. This process results in the expansion of the seafloor and can lead to changes in coastlines over time.
Rainfall amounts changing from year to year and the dying out of some plants affecting animal populations are not directly related to tectonic plate movement. Erosion over time changing the shape of mountains can be influenced by tectonic forces, but it is not the best example to explain plate movement.
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