The Rock Cycle. Arrows point from 1 stage to next. 1. Metamorphic Rock to point K to Magma to point V to Igneous Rock to Melting back to magma. 2. Metamorphic Rock to point K to Magma to point V to Igneous Rock to Heat and Pressure. 3. Metamorphic Rock to point K to Magma to point V to Igneous Rock to Weathering and Erosion to Sediment to Compacting and Cementing to Sedimentary Rock to Heat and Pressure to Metamorphic Rock. 4. From Sediment to Compacting and Cementing to Sedimentary Rock to Weathering and Erosion back to Sediment. 5. Metamorphic Rock to Weathering and Erosion to Sediment. Which event most likely occurs at point V?

cooling
erosion
heating
melting

Cooling

Explanation:

Metamorphic Rock to point K to Magma to point V to Igneous Rock to Heat and Pressure.

Point V would be cooling,

In the rock cycle, one rock can turn into another rock. A metamorphic rock can turn into an igneous rock through 2 process, namely melting and cooling. If a metamorphic will undergo tremendous heat, it could melt into magma. If magma cools down it would turn into an igneous rock.

In summary:

Metamorphic rock→ melting (Point K)→magma→cooling (Point V)→Igneous Rock

81 is a composite number.

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.