El Nio
A) did not occur in the 1990s.
B) causes warmer waters in the eastern Pacific Ocean.
C) leads to overall global cooling.
D) has little impact upon weather in the Northern Hemisphere.
E) none of the above
Question 2
The sulfur dioxide from a violent volcanic eruption does all of the following, except
A) remain in the atmosphere for at least a year.
B) stay in the middle to upper layers of the troposphere.
C) transform into sulfuric acid.
D) increase the amount of sunlight reflected back to space.
E) help cool the atmosphere.
During their annual migration, the entire population of Arctic terns move from the Arctic Ocean in t
Star Map Eastern Horizon
A sidewheeler on the Mississippi. In 1856 Samuel Clemens became an apprentice to a steamboat pilot a
A stylized bathymetric profile of the ocean
Ocean Conveyor Belt