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stellarik [79]
3 years ago
14

What is chromatography? Describe the process of chromatography and what forensic scientists can learn from it.

English
1 answer:
Shkiper50 [21]3 years ago
8 0

Chromatography is a chemical process through which scientist can separate mixed elements to analyze them individually.

It basically consists in dissolving the mixture in a liquid that separates the different elements as a purification process.

Forensic Scientists use it in different forms while processing samples, for example:

* Planar Chromatography that can identify if two samples are the same.

* HPLC that can detect explosive components and some specific drugs.

* Gas Chromatography can detect the presence of alcohol, drugs or poison in a body prior to its death.

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What types of trafficking exist? Please write in your own words.
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Answer:

being a slave for someone and childrens trading and cannot leave there job and do not control over there money and working long hrs.

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2 years ago
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Lilly took her brother Joe to the playground. Another little boy arrived at the playground with his mother. The boy started play
olasank [31]

Answer:

The teeter-totter was shared by the boys.

Explanation:

Passive voice is when the object of the sentence becomes the subject of the sentence. The subject of the sentence then receives the action instead of doing it. Passive voice always includes a form of the verb 'to be' and a particle of the main verb. In the case of the last sentence, the teeter-totter is the object/subject. "Was" is the past tense form of the verb "to be." Shared is the past particle of the verb "share."

So basically, the breakdown is like this:

The teeter-totter  +   was       +   shared by   +  the boys.

       object          past tense    past particle      subject

                            of the verb    of the verb

                               'to be'             'share'

All the other sentences are in active voice as the subject is doing the action. "Lilly took", "Little boy arrived", "The boy started playing" all have the subject in front of the verb.  

Hope this helps. :)                          

6 0
3 years ago
Maria took a drink from a container marked "milk." Surprised, she quickly spit out the liquid because it turned out the containe
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Answer:

Correct answer is " D"

Explanation:

D) top down processing

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Which graphical source would best show the average voting age of
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The best answer would be D
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