Assessing a claim based on context
quick check
news stories have claimed that cell phones may cause cancer or other health problems. others,
including cell phone providers, have indicated that there is no evidence to support the claim of cell
phones causing health problems. which statements would most likely be found in a report issued by a
cell-phone provider? check all that apply.
cell phones emit radio waves, a form of nonionizing radiation
brain tissue is located near where the phone is held and absorbs radiation from the phone.
cell phone use has increased to 303 million subscribers in the us as of 2010
the number and duration of cell phone calls has increased.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite   shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.