Answer:
b. silica
Explanation:
The majority of the volcanoes that form at subduction zones, or convergent plate boundaries, are stratovolcanoes. These volcanoes are also called composite volcanoes. The stratovolcanoes are known to have high to intermediate silica content of the lava they release. The eruptions tend to be periodic, and they are explosive and effusive in general, though there are exceptions. The fact that the lava is high to intermediate in silica content means that the lava is medium to highly viscous. Because of this, the lava tends to trap the gases in it, and as it reaches the surface and the temperature and pressure sharply change, the gases explode, resulting in eruptions that have lot of explosions and propelling of pyroclastic material.
Hi !!
I would answer ► 2, 3, 4
<em>II- Folk culture from once isolated regions can be diffused to other regions of the world.</em>
<em>III- Pop culture threatens to eradicate folk culture as groups abandon traditions in favor of a common culture.</em>
<em>IV- So folk culture have les and less influence than ever before.</em>
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<em>Which is not so in countries less "developed" industrial countries where traditions are still very important. Of course, they do not have modern communication, but their traditions aren't disappearing.</em>
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<em>I, II and </em> <em>IV are available ... otherwise, that's what I would have said !!</em>
<em>or I and just IV .....</em>
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hope this is correct and helpful ☺☺☺
They mostly had resources , and locations in common.
The answer is E.
A, B, C, and D are either irrelevant or already included.
