Compared to the time he spent in other parts of South America, Darwin spent little time collecting specimens in the Galapagos. Please select the best answer from the choices provided T F

format change of dna.  

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds