Not erupt at all, but remain in the magma chamber and cool .
Answer:
Quartz is not pure in this rock.
Explanation:
When quartz shows effervescence in contact with an acid, it means that it is not in its pure state, but rather related to other substances that may be cementing the quartz. This effectiveness is caused by substances that do not react like quartz, such as calcite.
In this case, we can conclude that in relation to the calcium-rich rock shown in the question above, the calcium is not pure, but it is likely to be related to calcite, or other material that does not react to acid.
Answer: The Northern European Plains.
Explanation: I hope this answers your question :)
Oil is the anwser because it is man made and natural and humans will need it a lot in the future