isotpoic labeling pf a specfic substrate carbon with 13c which has an extra neutron is particualary useful for investgating biochemical pathways because

What is the lowest number energy level where a d sublevel is found

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.