Binomial nomenclature refers to what two levels of classification?

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

When ash and dust begin to settle on the ground, they eventually become compacted by