How do geologists learn about Earth's interior?
What will be an ideal response?
Answer: "Some rocks seen at Earth's surface formed as much as 50 kilometers or (rarely) as far as 150 kilometers below the surface. These rocks reveal mostly felsic continental crust and mafic oceanic crust, both of which overlie peridotite mantle. The rocks found near the surface cannot account for the density of the whole Earth. Along with wobbles in Earth's rotation, the high overall density of the planet implies a central core of material that is much denser than mantle peridotite."
You might also like to view...
Carmakers' assembly plants account for only around 30 percent of the value of the vehicles that bear their names
Indicate whether the statement is true or false.
Which classification is so large it is considered a domain?
a. Monera b. Plantae c. Bacteria d. Animalia
A compound used in the treatment of manic depression has the formula Li2CO3. Which of the following is the correct name for this compound?
A) dilithium carbonate B) lithium carbon trioxide C) lithium carbonate D) lithium carboxide
A subgroup of silicates that includes minerals used in ceramics, construction, and drilling for oil is the
A. clay subgroup. B. ferromagnesian subgroup. C. zeolite subgroup. D. mica subgroup.