In which situation is the principle of cross-cutting relationships useful in determining relative age? 1. A fault breaks through sedimentary layers.

2. Fossils of two different species are found in different rock layers.

3. Sedimentary layers form over millions of years in a lake bottom.

4.Lava flows form on top of one another from several eruptions over time.

HELP ASAP
MARK BRAINIST

1. A fault breaks through sedimentary layers.

Explanation:

The principle of cross cutting relationships is useful in determining the relative age of a fault break through sedimentary layers.

Principle of cross cutting relationships states that "a feature which cuts through a rock sequence is younger than the rock through which it cuts through".

A fault break through sedimentary layers is younger than the rock layers.

true is the answer : )