When there are no signs of an active magma chamber beneath the volcano (no unusual seismic activity, no volcanic gasses escaping etc.), and when there hasn't been any activity for a long time span (at least 10,000 years).
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The two main rivers are The River Murray and its tributary, the Darling River.
D none of the above
Sorry if this is the wrong answer
Answer:
the ability to know which kind of map you are reading, the ability to think about how s map can be interpreted, and the ability to read different parts of the map