Question

which characteristic is shared by intrusions and faults? all are cracks. all are igneous rocks. all cause gaps in the geologic record. all are younger than surrounding rocks.

Explanation:

Intrusions are igneous rocks that form when magma cools and solidifies beneath the Earth's surface. Faults are fractures in the Earth's crust along which movement has occurred. Both intrusions and faults cut through pre - existing rocks, and according to the principle of cross - cutting relationships, features that cut through rocks are younger than the rocks they cut through.

Answer:

All are younger than surrounding rocks.