31. which is not typical of most igseous sock large amount of pores betwees orystals b. interlocking crytals c. formed by oryitallization from s magm d. actually, all are characteriotic

c. formed by oryitallization from s magm

Explanation:

Igneous rocks as the word are dits derived from fore the rocks have a certain layer of basaltic surface and lava formation which when solidifies to form the igneous rocks these rocks as an effect of cooling and solidification process form spores within the rocks and which leads to small to a large number of pores on them. The interlocking of various pores on the surface of the rocks or the between the pores results in the texture and chemical composition. They may or may not be formed as a result of the crystallization from magma and lavas as these rocks may take place a the surface or within. There may exist a  partial melting and fractional crystallization.

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