Please hurry its urgent Thank you Where are neutrons found in what type of charge do they have

A) in the nucleus; positive
B) outside the nucleus; neutral
C) in the nucleus; neutral

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

What happens during the experiment stage of the scientific method

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls