Pyrite is a mineral which is made from iron and sulfur atoms. Choose all of the statements which are correct. (Pick more than one)

A. The smallest unit of pyrite is a sulfur or iron atom.

B. The smallest unit of pyrite is a molecule containing iron and sulfur.

C. All of the above.

D. The element called sulfur is made of sulfur atoms.

(Please hurry I have been stuck on this question for an hour)

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

the answer would be   10%

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.  

d. changes in climate and historical records

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