According to the question, I think that the planes MNR and RNO intersect in a line. In Euclidean Geometry, 2 planes then would intersect precisely in one. Hope this is the answer and would be of help in this question.
Because the core is nothing but iron and its heated by the sun
Answer:
The basin holds 65 million gigaliters of water, about 820 times the amount of surface water in Australia, and enough to cover the Earth's land mass under half a meter of water, says the Great Artesian Basin Coordinating Committee.
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