What is the Great Rift Valley and why is it important?
Natural EnvironmentsThe Rift Valley has been a rich source of fossils that allow study of human evolution, especially in an area known as Piedmont. Because the rapidly eroding highlands have filled the valley with sediments, a favourable environment for the preservation of remains has been created. Where is the Great Rift Valley and why is it
How does transitional fossils support evolution?
Regional SpecificsTransitional fossils are remnants of an organism that came in between a known version of a species and the current species. Allegedly, transitional fossils would be evidence for evolution because it would show intermediate forms of a species and they changed and accumulated adaptations at a slow pace. How does transitional form support evolution? A
What are all the layers of the earth?
Regional SpecificsThe earth is made up of three different layers: the crust, the mantle and the core. What are the 7 Earth layers? A cross section of Earth showing the following layers: (1) crust (2) mantle (3a) outer core (3b) inner core (4) lithosphere (5) asthenosphere (6) outer core (7) inner core. Core, mantle, and crust
What is the meaning of deep time?
Geology & LandformDeep Time is a concept developed by the geologist James Hutton (1726-1797). In this context evolution can only be measured over vast, immeasurable amounts of time where numbers no longer have any meaning. How long is deep time? After all, evolutionary change isn’t apparent in days, months, or years. Instead, it’s documented in layers and
What is soil flow?
Regional SpecificsSoil Flow is flow of completely saturated soil with water where individual soil particles move easily over one another and over the underlying rock. Landslides are very rapid movement of mass of soil or rock in steep slopes such as in mountainous areas. What is the meaning of soil flow? Definition. Soil water flow is
Why is radiometric dating an example of absolute dating?
Natural EnvironmentsRadiometric dating. Most absolute dates for rocks are obtained with radiometric methods. These use radioactive minerals in rocks as geological clocks. The atoms of some chemical elements have different forms, called isotopes. Why is radiometric dating referred as absolute dating? Radiometric dating is referred to as absolute dating because it gives scientists a precise age