If a Fossil Is Encased in a Stratum of Sedimentary

question 61

Multiple Choice

If a fossil is encased in a stratum of sedimentary rock without any strata of igneous rock (for example, lava, volcanic ash) nearby, then it should be

• A) easy to determine the absolute age of the fossil, because the radioisotopes in the sediments will not have been "reset" by the heat of the igneous rocks.
• B) easy to determine the absolute age of the fossil, because the igneous rocks will not have physically obstructed the deposition of sediment of a single age next to the fossil.
• C) easy to determine, as long as there is enough metamorphic rock nearby.
• D) difficult to determine the absolute age of the fossil, because the "marker fossils" common to igneous rock will be absent.
• E) difficult to determine the absolute age of the fossil, because radiometric dating of sedimentary rock is less accurate than that of igneous rock.

---

Definitions:

Essential Strategies

Fundamental plans or approaches necessary to achieve a particular goal or outcome.

AIDA Plan

A marketing strategy framework that stands for Attention, Interest, Desire, and Action, used to guide promotional communications.

Deadlines

Specified times by which tasks must be completed or submissions made.

Reputation

The common opinion about a person's or organization's character, virtues, and capabilities, based on past actions and performance.