Question

13 the diagram shows several rock layers in an area. a scientist claims that an intrusion of magma (layer y) formed before layer x. which evidence statement supports the scientists claim?
a layer y is partly covered by layer x.
b. layer x crosses over layers w, z, and y.
c. layer y is larger in area than rock layer z.
d. layer z is parallel to layer x, which was deposited before layer y.

1. earths tectonic plates have pressed together for many millions of years in several locations. what happened if they were pressed together in a place where oceanic plate material meets continental plate material?

a the continental plate material was pushed downward.
b. the oceanic plate material was pushed downward.
c. the plates were not able to move while they were pressing together, and no plate material was pushed upward.
d. the edges of the plates were not pushed upward but they were broken into small pieces.

Explanation:

Question 13

According to the principle of superposition and cross - cutting relationships in geology, if one layer is covered by another, the covered layer (in this case, layer Y) must have formed before the covering layer (layer X).

When an oceanic plate and a continental plate converge, the oceanic plate (which is denser) is subducted (pushed downward) beneath the continental plate.

Answer:

A. Layer Y is partly covered by Layer X.

Question 14