An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described? small crystals/cooled quickly/produced from magma/formed at Earth’s surface

are there any answer choices

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

what are the options? add them, then i will be glad to .