Help it is easy I think Why must scientific investigations be replicable?

A ) to prove the reliability of the results

B)to confirm ideas and theories

C)to prove its validity within the scientific community

D)to improve the investigation each time

Ab c or d ? i’m not sure what the answer is

What is the common name for the compound shown here? enter the common name of the compound shown?

Listenbase your answer to the question on the information below. nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body. cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment. which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61