Ridges in the middle of the ocean are places where
A) one plate slides under another, returning older crust to the mantle.
B) hot mantle material rises upward, creating volcanic islands.
C) hot mantle material rises upward and spreads sideways, pushing the plates apart.
D) plates push together, creating ocean mountain chains.
E) plates slip sideways relative to one another.
Question 2
Based on everything you have learned about the formation of our solar system, which of the following statements is probably not true?
A) Only a tiny percentage of stars are surrounded by spinning disks of gas during their formation.
B) Planets always tend to orbit their star in the same direction and approximately the same plane.
C) Other solar systems will also have planets in the two basic categories of terrestrial and jovian.
D) Other planetary systems will have far more numerous asteroids and comets than actual planets.
The path of sound waves through the outer, middle, and inner ear.
Middle nasal conchae
Ocean Waste
Normal Faults Common at divergent plate boundaries
Jan-Dec Global Mean Temperature Over Land and Ocean
Directions and Rates of Plate Motions