How and to what degree was East Asia economically linked to the rest of the world in the precolonial era? What is the Silk Road?

1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle

Which types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves

Which modern technology has not made a great difference in the inuit way of life?