True, diabetes can contribute to gum disease.
Answer:
C. severe diarrhea and intestinal cramp
Next is option A
Coal has been found in Antarctica is the right answer since it is completely unrelated to plate tectonics.
I say the correct answer would be: organism.
A chemical indicator is a substance that changes color when you an acid to it. it is used to test the acidity in water, soil, etc.
i havent learned how it works yet , but ill try to figure it out for you