Cuales son los efectos de la nicotina

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

b) the inside picture would look at a very high temperature in a very low ph

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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