Forensic investigators have to worry about contamination of evidence they find at a scene or even contaminating the scene itself. Given your experience with dusting and lifting prints, what steps can investigators take to limit contamination? Answer the question and then discuss your answer with a partner.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

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burning fossil fouls really decrease the carbon in the atmosphere so b