Posted on April 16, 2022 (Updated on July 9, 2025)
What are the different types of seismic waves?
Regional SpecificsThere are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves. What are the 4 types of seismic waves? Love Waves—surface waves that move parallel to the Earth’s surface and perpendicular to the direction of wave propagation.. P-wave Motion. P-wave:the primary body wave;
Posted on April 16, 2022 (Updated on July 9, 2025)
What is the difference between a fossil of a plant or organism and a trace fossil of an animal?
Regional SpecificsBody Fossils and Trace Fossils The fossils of bones, teeth, and shells are called body fossils. Most dinosaur fossils are collections of body fossils. Trace fossils are rocks that have preserved evidence of biological activity. They are not fossilized remains, just the traces of organisms. What is the difference between an animal and a trace
Posted on April 16, 2022 (Updated on July 9, 2025)
Which is the best evidence supporting the concept of seafloor spreading?
Regional SpecificsSupporting Evidence for Seafloor Spreading First, samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge. What are the evidence that supports the theory of seafloor spreading? Harry Hess’s hypothesis about seafloor spreading
Posted on April 16, 2022 (Updated on July 9, 2025)
Why is Hawaii in the middle of the Pacific plate?
Regional SpecificsIn areas where the plates come together, sometimes volcanoes will form. Volcanoes can also form in the middle of a plate, where magma rises upward until it erupts on the seafloor, at what is called a “hot spot.” The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific
Posted on April 16, 2022 (Updated on July 9, 2025)
Why is a quick burial helpful In the fossilization process?
Regional SpecificsThe rapid burial of remains beneath a blanket of sediment is critical to the process of fossilization because burial separates the remains from the biological and physical processes that would otherwise destroy them. Why is rapid burial important in the fossilization process because? Rapid burial is important in the fossilization process because: It protect a
Posted on April 16, 2022 (Updated on July 9, 2025)
How did scientists discover seafloor spreading?
Regional SpecificsIn the early 1960s, dating of ocean-core samples showed that the ocean floor was younger at the Mid-Atlantic Ridge but progressively older in either direction, confirming the reality of seafloor spreading. How did they discover seafloor spreading? The age, density, and thickness of oceanic crust increases with distance from the mid-ocean ridge. The magnetism of