According to the principle of cross-cutting relationships, if an igneous intrusion cuts across a layer of schist, the igneous intrusion is than the schist. a. older than b. more dense than c. the same geologic age as d. younger than

What evidence supports geological processes changing the surface of the earth? cutting down forests creates a decrease of habitats. tectonic plates uplift the rocky crust of earth to form mountains. competition in ecosystems creates a decrease in diversity. pollution runoff contaminates a lake.