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. Finding the absolute age of rock by looking at the rate of decay - Radioactive Dating. Radioactive dating uses the decay rate of radioactive isotopes to determine the age of rocks.
2. An igneous rock layer formed when lava flows onto Earth's surface and hardens - Extrusion. Extrusion occurs when magma reaches the Earth's surface as lava and cools and solidifies.
3. An igneous rock layer formed when magma hardens beneath Earth's surface - Intrusion. Intrusion is the process where magma cools and solidifies below the Earth's surface to form igneous rock layers.
4. Principle stating that a fault or intrusion is younger than the rock it cuts across - Law of Cross - Cutting Relationships. This law helps in relative dating of geological features.
5. Layers of sedimentary rock - Rock Strata. Rock strata are layers of sedimentary rock that are laid down over time.

Answer:

1. Radioactive Dating
2. Extrusion
3. Intrusion
4. Law of Cross - Cutting Relationships
5. Rock Strata