Answer:
The upper layer of the mantle is said to be thicker than the lower mantle, but not solid rock like crust. The tectonic plates rest on this layer and it is responsible for the movement of those plates.
Explanation:
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<span>The correct answere for this question is A - the three major types of volcanoes are shiel volcanoes, cinder volcanoes and composite volcanoes. Two other tyypes of volcano are the lava dome volcano, and the Rhyolite Caldera complex (this type is not common, but are the most dangerous and explosive - Yellowstone is an example of this type of volcano).</span>
Sun and Earth distance 149.6 million km