By observing how seismic waves are absorbed and refracted, scientist have been able to work out where the properties of the earth change dramatically. our understanding of the internal structures of the earth and the size of its core is based on these observations.
basically:
size of core
structure of the earth I.e. the layers of the earth
and I think the last one is how the internal structure is changing? not sure on the last one but its still a solid guess.
The answer is C. California sits on top of two of Earth's major tectonic plates... meaning that it is very likely for earthquakes to happen
Answer:
1. oceanic crust
2. Volcanic mountain ranges
Explanation:
<span>its is between the eurasian plate and the Indian plate that formed the himalayas</span>
