Question

1. how do scientists use rock strata to determine earths history?

Explanation:

Rock strata are layers of rocks. Scientists use principles like superposition (lower strata are older), cross - cutting relationships (features cutting across strata are younger), and fossil evidence within strata. Fossils in specific strata can date the rock layer and provide information about past life forms and environments.

Answer:

Scientists use principles such as superposition, cross - cutting relationships, and fossil evidence within rock strata to determine Earth's history. Rock strata are layers of rocks, and fossils in these layers can help date the rocks and reveal information about past life and environments.