which feature causes a gap in the geologic record?\n○ extrusion\n○ fault\n○ intrusion\n○ erosion

Brief Explanations:

Erosion is the process by which surface materials like soil and rock are worn away. It can remove layers of rock that would otherwise be part of the geologic record, creating a gap. Extrusion and intrusion are related to igneous rock - formation processes and don't directly cause gaps in the record. A fault is a fracture in the Earth's crust and while it can displace rock layers, it's not the main feature causing a gap in the geologic record like erosion does.

Answer:

D. erosion