which statement provides the best evidence that a volcanic eruption occurred at the outcrop?\na. fossil type…
which statement provides the best evidence that a volcanic eruption occurred at the outcrop?\na. fossil type 4 was found in layer z only.\nb. a fault line is present in layers y and z.\nc. igneous rock pushed into layers y and z.\nd. layers v through z do not share a common fossil.
Answer
Brief Explanations:
Igneous rocks are formed from the cooling and solidification of magma or lava. Magma intrusion during a volcanic eruption can push into existing rock layers. So, the presence of igneous rock pushed into layers Y and Z is strong evidence of a volcanic eruption. Fossil distribution (A and D) and fault lines (B) are not direct evidence of volcanic eruptions.
Answer:
C. Igneous rock pushed into layers Y and Z.