Question

Question

Which describes the difference between the law of inclusion and the law of crosscutting in relative dating of rocks and fossils?(1 point)
Responses

Bottom layers of rock are older only in the law of crosscutting.
Bottom layers of rock are older only in the law of crosscutting.

Intruding objects are older in the law of inclusion.
Intruding objects are older in the law of inclusion.

Bottom layers of rock are younger only in the law of crosscutting.
Bottom layers of rock are younger only in the law of crosscutting.

Intruding objects are younger in the law of inclusion.

Answer 1

The correct description of the difference between the law of inclusion and the law of crosscutting in relative dating of rocks and fossils is:

Intruding objects are older in the law of inclusion.

Here's a brief explanation:

• The law of inclusion states that any rock fragment (inclusion) that is included in another rock must be older than the rock that contains it. This means that if you find a piece of rock within another rock, the piece is older than the surrounding rock.

• The law of crosscutting relationships states that an intrusion (like a fault or magma) that cuts through other rocks is younger than the rocks it cuts through. This implies that if a rock layer is cut by another geological feature, the layer that is being cut is older than the feature that is cutting it.

So, in relative dating, the law of inclusion addresses the age of objects included within a rock, while the law of crosscutting relates to the age of geological features that cut through layers.