<span>Celebrities should use their status as role models to bring attention to social issues.
The center of a cluster web for an essay should contain the main idea of the essay. From the essay prompt, we know that the essay should address the issue of whether or not celebrities have a responsibility to act as role models. The statement in the center of the cluster web should be a broad statement that answers the question without any specific evidence. The evidence goes in connecting bubbles. The only broad statement that addresses the essay prompt is the one that states: </span><span>Celebrities should use their status as role models to bring attention to social issues.</span>
The answer is costs because the other words do not make any sense.
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.
Are we suppose to guess whats suppose to be in there?????