in the paragraph box, write the main idea of the paragraph below.
acids in concentrated form are very dangerous chemicals to work with. for example, hydrochloric acid has been known
to eat through just about anything, including metal. acids do appear in the foods you eat. will the acid harm you? not if
you eat a balanced diet. but with highly-acidic foods, you sure know the acid is there. it's what makes lemons so sour.
main idea: