Briefly explain the concept of plate tectonics and why it is important for the study of geography
What will be an ideal response?
Plate tectonics is "fueled" by heat from Earth's core, which creates convection currents that flow in the mantle, pushing the soft rock upward as it heats up and downward as it cools. As the mantle moves along these giant "conveyor belts," it moves large plates of lithosphere (continental plates) along its surface. Plate tectonics make up the processes that underlie earthquakes and volcanoes, create mountain ranges, and shape shorelines. They determine much of the geography of Earth's surface.
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Evidence for dark matter is exhibited by the
A. speed at which galaxies orbit one another within clusters. B. degree to which galaxy clusters exhibit gravitational lensing effects. C. relatively similar speeds at which all stars in a galaxy orbit the galactic nucleus. D. all of the above
A slow reproduction rate makes a species especially vulnerable to biological extinction.
Answer the following statement true (T) or false (F)
Isotopic dates from volcanic ash or lava flows layered between fossiliferous sedimentary rocks have been used to assign numerical ages to the geologic time scale.
Answer the following statement true (T) or false (F)
Which of the following kingdoms includes species that live with cyanobacteria or green algae to form lichen?
A) Archaebacteria B) Eubacteria C) Fungi D) Plantae E) Protista