I am pretty sure its convection currents in the mantle
You answer will be sentimental I'm pretty sure have nice day
When you make a statement that needs evidence to back it.
ie the farming industry has been crumpled by Manzanto as said in <u>(source)</u>
Data from a study about the effects of certain diets on people's health is primary source. i.e, option A is correct.
<h3>What source is a primary source?</h3>
Primary sources are documents, images or artifacts that provide firsthand testimony or direct evidence concerning an historical topic under research investigation. Primary sources are original documents created or experienced contemporaneously with the event being researched.
Data about the fact of certain diets on people health is primary source.
Learn more about primary source here:
brainly.com/question/24511160
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