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Cross-cutting can give insight to whether or not a certain layer is older or younger than what is cross-cutting it. Say if a dike was cross-cutting layer A, then layer A is older than the dike.

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What information can index fossils give geologists?

Index fossils are useful to geologists as they are distinctive fossils that can be used to date the age of rock layers based on their known age ranges. By identifying and studying index fossils in rock layers, geologists can determine the relative age of the rocks and establish a timeline of Earth's history. This helps geologists correlate rock layers across different locations and construct a more accurate geological history of an area.


When geologists place rocks in their proper sequence of formation this is called dating?

No, when geologists place rocks in their proper sequence of formation, it is called relative dating. This method does not give an exact age, but it establishes the order in which rocks formed based on their position in a sequence. Absolute dating techniques are used to determine a specific numerical age of a rock or fossil.


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One type of evidence for continental drift is fossil evidence, such as plant and animal fossils that are found on separate continents but are closely related. Another type is geological evidence, including the matching of rock formations and mountain ranges on different continents, as well as the distribution of earthquakes and volcanoes along continental boundaries.


What do fungi often participate in with other living things?

Fungi often participate in symbiotic relationships with other living things, such as plants or animals. They can form mutualistic partnerships, where both organisms benefit, or parasitic relationships, where one organism benefits at the expense of the other. These interactions are important for nutrient cycling and ecosystem function.


What is the scientific definition of complex systems?

According to Wikipedia, The study of complex systems investigates relationships between parts that give rise to the collective behaviors of a system and how the system interacts with its environment.