The Earth’s is broken into tectonic plates.
crust
mantle
2.
This is the largest of the six major tectonic plates.
North American
Pacific
3.
The Himalaya Mountains can be found within the plate.
Eurasian
Indo-Australian

The lithosphere, which is the outermost shell of a planet (the crust and upper mantle area), is broken into about 8 tectonic plates. technically the upper most part of the mantle and all of the crust is broken into tectonic plates, but for this I would say crust.Pacific; the pacific plate is the largest tectonic plate of the major six and lies underneath the Pacific ocean.The Himalayian Mountains can be found on the Eurasian plate.