Answer:
<h2>Petroleum that is worthwhile extracting is usually found trapped in layers of permeable rocks by other layers of impermeable rock, but more recently reserves of gas and oil are being extracted from shale which is an impermeable rock but is porous in the sense that there are spaces (pores) within its structure in which ...</h2>
That is incorrect. Subduction is when one plate moves under another.
Answer:
according to the dictionary, Ethnicity is the fact or state of belonging to a social group that has a common national or cultural tradition.
Explanation:
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