Scientists are working with a liquid that is made of only one type of atom. Which statement correctly describes this liquid?

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.