Which of these is a compound? ?

a. salad
b. carbon dioxide
c. potassium
d. salt water

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

i'm assuming that the correct answer is indeed the first one/ "a"..

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl