Which statement best describes an igneous intrusion? a. magma explodes to the surface and forms a smooth outer layer of rock. b. igneous intrusions form when ice crystals splash into lava. c. magma is injected into surrounding rock forming an igneous intrusion. d. magma is exported to an open area and forms iron.

C. Magma is injected into surrounding rock forming an igneous intrusion.

Igneous intrusion is a natural phenomena in which a molten magma rises up from the mantle and intrude inside the rocks lying above it. The hot magma gets cool inside the another rock, therefore, the structure of the rock being intruded by magma remains stable and unbroken.

velocity and height

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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