Which of the following statements best gives an example of absolute age? (1 point)
• In horizontal layers of sedimentary rock. Rock layer A is older than Rock layer B.
© I am older than my sister.
The extrusion is younger than the rock layer below it.
• The half-life of carbon-14 is 5,730 vears
• In horizontal layers of sedimentary rock. Rock layer A is older than Rock layer B.
The statement that gives an example of absolute age is:
"In horizontal layers of sedimentary rock, rock layer A is older than rock layer B."
The statement "In horizontal layers of sedimentary rock, Rock layer A is older than Rock layer B" gives an example of absolute age.
To understand why, let's first explain the concept of absolute age. Absolute age refers to the actual age of a rock, fossil, or other geological feature, measured in years or other time units. It is determined through various scientific methods, such as radiometric dating, which involves measuring the concentrations of specific isotopes within the sample.
In this case, the statement provides information about the relative ages of two rock layers by comparing their positions in the sedimentary rock. The idea is that in undisturbed rock layers, the lower layers are formed earlier and are therefore older. By observing the horizontal layers, we can deduce that Rock layer A is positioned below Rock layer B, indicating that Rock layer A is older than Rock layer B. This comparison of rock layers based on their relative positions allows us to determine their absolute ages.