A reaction occurs in which carbon combines with sulfur to form carbon disulfide. Is this a chemical reaction or a nuclear reaction, and how do you
know?
O A. This is a nuclear reaction, because there was a change in the
atoms' nuclei.
B. This is a chemical reaction, because only the electrons were
rearranged
C. This is a chemical reaction, because mass was not conserved.
O D. This is a nuclear reaction, because mass was conserved.
Answer is D

1. the geologists have established a set of principals that can can be used o determine the relative ages of rock. this principal is applied to sedimentary and volcanic rocks. the rocks exposed to wall of grand canyon has layers and by studying the number of horizontal layers in the rock(strata) the relative age can be determined. the layer first formed will appear at the bottom and the the layer of strata last formed appear at the top. by using this information the approximate age of rocks can be determined.

2. carbon dating is used to find the relative age of rock in numbers which means for the rocks that has age between 1-70,000 years.

3. for the rocks of age range between 1,000 - billion of years potassium-argon dating is used.

i believe this is true, if you're asking for whether its true or false. : )