Question

3. What do the law of superposition and the law of inclusion have in common?a. Both laws are about the ages of intruding rocks. b. Both laws give the exact ages of rocks.c. Both laws are about matching fossils in different areas.d. Both laws describe the relative ages of rocks.__________________________________________________________________4. Which is correct about the effectiveness of carbon dating? (1 point)a. It only works for organisms that died less than about 60,000 years ago. b. It only works for rocks that formed more than about 6,000 years ago. c. It only works for rocks that formed more than about 60,000 years ago. d. It only works for organisms that died less than about 6,000 years ago.___________________________________________________________________5. Which statement is correct about carbon dating and index fossils?a. Carbon dating is used for absolute dating, but index fossils are not.b. They are both used to determine the absolute ages of rocks and fossils.c. They are both used to determine the relative ages of rocks and fossils.d. Index fossils are used for absolute dating, but carbon dating is not._________________________________________________________________6. Which statement explains why ammonites are a good example of an index fossil?(a. Ammonites existed only in the oceans.b. Ammonites existed long before the dinosaurs.c. Ammonites existed in a small geographic area.d. Ammonites existed for a relatively limited period of time._________________________________________________________________7. What is the theory that describes the movement of landmasses on Earth’s surface?a. continental driftb. subductionc. divergenced. plate tectonics__________________________________________________________________8. How does the fern Glossopteris provide evidence for the movement of the continents?a. It was found on many continents.b. It existed in the Permian period.c. It is the oldest plant on Earth.d. It lived at the same time as Lystrosaurus.___________________________________________________________________9. Which is a result of Earth’s magnetic poles reversing over time?a. bands in rocks that contain magnetic particlesb. magma rising to the ocean floor at mid-ocean ridgesc. high amounts of iron found in ocean rocksd. volcanoes occurring at tectonic plate boundaries______________________________________________________________10. How are earthquakes at continental plate boundaries different from earthquakes at mid-ocean ridges?a. They begin deeper in Earth’s crust.b. They are longer in duration.c. They are shorter in duration.d. They begin closer to Earth’s surface.__________________________________________________________________11. Which describes ocean rocks that are found near mid-ocean ridges?a. They are older and form through the cooling of magma.b. They are younger and form through the cooling of magma.c. They are older and form through the cementation of sediments.d. They are younger and form through the cementation of sediments.

Answer 1

Law of Superposition: In a series of sedimentary layers, the bottom layer is the oldest.

Law of Inclusion: states that clasts in a rock are older than the rock itself. In other words, if a rock body contains fragments of another rock body, it must be younger than the fragments of rock it contained.

So, both laws describe the relative ages of rocks. (option d)

The ages described are relative because it is a comparison between the ages of two rocks.