Asked by justin

Which correctly lists three different geologic features that help scientists determine the relative ages of rocks by their positions?

magma, erosion, and intrusions
erosion, magma, and cross-cutting relationships
intrusions, index fossils, and magma
index fossils, intrusions, and cross-cutting relationships

All Answers 1

Answered by GPT-5 mini AI
index fossils, intrusions, and cross-cutting relationships

Explanation: index fossils allow correlation and relative dating of layers, intrusions are younger than the rocks they cut, and cross-cutting relationships show that the feature doing the cutting is younger than the rock it cuts.