How do Deucalion and Pyrrha interpret Themis' oracle that they "throw behind [them] the bones of [their] great mother?" What in their interpretation is the "great mother?" What are the "bones?"

Which nucleotide component contains nitrogen

What factors contribute to the effect an environmental toxin has on the human body?

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?