Fast food is often considered unhealthy because much of it is high in both fat and sodium. but are the two related? here are the fat and sodium contents of several brands of burgers. analyze the association between fat content and sodium using correlation and a scatterplot.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question