<span>The geologic time scale is divided into periods, which are then divided into epochs, which are further divided into ages. For example, the time of the dinosaurs lasted 3 periods (Triassic, Jurassic, Cretaceous), each period had 3 epochs (late, early, middle), and each age fit into one of those. Many epochs have more than 1 age associated with them.
As for the basis for differentiating the eras, I'm not so sure. The only one I can say for sure is the end of the Cretaceous, which is when the dinosaurs suddenly became extinct due to a meteor impact. I think the divisions are based on significant, global-scale events that changed the world.
Sorry its so long but that the answer i think >:) ur welcome
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Answer:
parasitism,
Explanation:
parasitism, relationship between two species of plants or animals in which one benefits at the expense of the other, sometimes without killing the host organism.
Explanation:The rock cycle is a model that describes how rocks are created, changed, and broken down. There are three major types of rock: igneous rock, metamorphic rock, and sedimentary rock. During the rock cycle, each type of rock may be changed into another type.
The rock cycle includes these processes:
Crystallization is the process by which magma cools and forms solid igneous rock.
Heat and pressure can change igneous rock and sedimentary rock into metamorphic rock.
Weathering and erosion are the processes that break down rock into sediment and transport this sediment to other places.
Sediment is changed into sedimentary rock by compaction and cementation.
Melting is the process that transforms solid rock back into liquid magma.
The first cause of this lack of response the nurse should explore is: The patient not adhering to therapy.
Answer:
Thermal
Explanation:
The total kinetic and potential energy of the particles in an object is called thermal energy.