What is an Igneous Rock? rock that forms when existing rock changes to a new rock because of heat and pressure
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rock that forms by the process of compaction and cementation of sediments
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rock that forms when melted rock (magma, lava) cools and hardens

rock that forms when melted rock (magma, lava) cools and hardens

Explanation:

Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust.

Brainliest plz

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain