Question

1. what is the primary function of relative and absolute dating in creating earths geologic time scale?

relative dating establishes the chronological sequence of events, while absolute dating provides specific numerical ages for those events, together creating the organized framework of the geologic time scale.

relative dating is used to determine the order of rock layers, while absolute dating is used to identify the types of fossils within those layers.

relative dating is used to analyze radioactive decay within rocks, while absolute dating is used to correlate rock layers across different locations.

relative dating assigns names to major time intervals, while absolute dating is used to measure the thickness of those intervals

Explanation:

• Relative dating: It helps in establishing the chronological sequence of events. For example, using principles like superposition (younger rocks on top of older ones) to determine the order of rock layers and events.
• Absolute dating: It provides specific numerical ages. This is often done through methods like radiometric dating (analyzing radioactive decay in rocks to get an age in years). Together, they create an organized framework for the geologic time scale.
• Analyzing other options:
• Option B: Absolute dating is not about identifying fossil types. Relative dating can help with rock - layer order, but the description of absolute dating here is wrong.
• Option C: Relative dating is not about radioactive decay (that's more of an absolute dating method in some cases like radiometric dating). And correlating rock layers across locations can be part of relative dating (like using index fossils), but the description of relative and absolute dating here is incorrect.
• Option D: Relative dating is not about naming time intervals (that's more of a human - defined aspect in the geologic time scale creation, not the core function of relative dating). And absolute dating is not about measuring interval thickness.

Answer:

A. Relative dating establishes the chronological sequence of events, while absolute dating provides specific numerical ages for those events, together creating the organized framework of the geologic time scale.