Geologic Time Framework Practice Test

A student uses a simplified geologic time framework to organize Earth’s history by order and relative duration. The student underlines a note: segment lengths are not equal.

Timeline: EARLY ———————————————————————————————— MIDDLE ———————— RECENT — Events: • Earth’s crust cools and solidifies (EARLY) • First complex multicellular life becomes common (MIDDLE) • Humans appear (RECENT)

Which claim is the incorrect use of the framework?

A science notebook shows a simplified geologic time framework used to organize Earth’s long-term history by order and relative duration. The notebook notes: the drawn segment lengths are not equal.

Timeline: EARLY ———————————————————————————— MIDDLE ——————— RECENT ——— Events: • First oceans form (EARLY) • Dinosaurs live (MIDDLE) • Humans appear (RECENT)

A student makes a claim about the timeline. Which claim misuses the time framework?