Description acceptable. This task is accomplished by using the SAR protocol to fix an equivalent dose and then applying infrared radiation in this task’s IRSL form. The principle of inclusions is used to perform one type of this task. Hans Suess published a pioneering calibration curve for one method for this task, which uses a 1000-pound vat of oxalic acid from sugar beets as a NIST standard and was proposed by Willard Libby. (10[2])Examining (10[1])cross-cutting relationships (10[1])and using the law of superposition (10[1])is used to perform this task’s (10[1])“relative” (10[2]-5[1])type (10[3])on strata. (10[5])Many methods (10[1])for this (10[1])task, (10[4])like (10[2])its (10[1])“argon–potassium” (10[3])form, (10[3])work by measuring (10[1])the ratio between two radioisotopes. (10[4])For 10 points, (10[1])carbon-14 (10[3])is used to perform what task, (10[2])which is (10[1])approximated (10[1])by counting how many rings a tree has? ■END■ (10[1])