Question

match each vocabulary term with its correct definition.
finding the absolute age of rock by looking at the rate of decay
an igneous rock layer formed when lava flows onto earths surface and hardens
an igneous rock layer formed when magma hardens beneath earths surface
principle stating that a fault or intrusion is younger than the rock it cuts across
layers of sedimentary rock
radioactive dating
law of cross - cutting relationships
intrusion
extrusion
rock strata

Explanation:

1. Radioactive Dating: It is the method of finding the absolute age of rock by looking at the rate of decay of radioactive isotopes.
2. Law of Cross - Cutting Relationships: This principle states that a fault or intrusion is younger than the rock it cuts across.
3. Intrusion: An igneous rock layer formed when magma hardens beneath Earth's surface.
4. Extrusion: An igneous rock layer formed when lava flows onto Earth's surface and hardens.
5. Rock Strata: Layers of sedimentary rock.

Answer:

1. Radioactive Dating: Finding the absolute age of rock by looking at the rate of decay
2. Law of Cross - Cutting Relationships: Principle stating that a fault or intrusion is younger than the rock it cuts across
3. Intrusion: An igneous rock layer formed when magma hardens beneath Earth's surface
4. Extrusion: An igneous rock layer formed when lava flows onto Earth's surface and hardens
5. Rock Strata: Layers of sedimentary rock