Multiple choice Which of the following is a true statement about tectonic plates? All tectonic plates are located at the Earth's core They're located in the molten layer under the Earth's crust They're located approx. 10m below the surface of the ocean All Earth's land masses rest on tectonic plates Reveal answer Fill a bubble to check yourself D Correct answer Explanation Tectonic plates make up the lithosphere, which is the rigid outer shell of the Earth consisting of the crust and upper mantle. All of Earth's oceans and landmasses rest on top of these moving plates.