Answer:
Index fossils, intrustions and cross-cutting relationships.
Explanation:
The correct list of three different geologic features that help scientists determine the relative ages of rocks by their position is "index fossils, intrusions, and cross-cutting relationships".
Answer:
C
Explanation:
The run-off will absorb the fertilizer and it will contanimate the lake
1. Physical weathering
2. Chemical weathering
3. Biological weathering