Composite volcano magma contains more silica, SiO 2, than that of a shield volcano and is therefore stickier (more viscous).This stickiness plugs up the volcano, causing pressure to build-up. The result is an explosive, dangerous eruption.omposite volcano magma contains more silica, SiO 2, than that of a shield volcano and is therefore stickier (more viscous).
Historically, in North American banking, the prime rate was the actual interest rate, although this is no longer the case. The prime rate varies little among banks and adjustments are generally made by banks at the same time, although this does not happen frequently. The prime rate is currently 3.25% in the United States and 2.85% in Canada.
It should not be confused with the federal funds rate set by the Federal Reserve, though these two rates often move in tandem. The current rate is 3.25% (as of 11/25/2014). The print edition of the WSJ is generally the official source of the prime rate.The Wall Street Journal prime rate is considered a trailing economic indicator.t should not be confused with the federal funds rate set by the Federal Reserve, though these two rates often move in tandem. The current rate is 3.25% (as of 11/25/2014). The print edition of the WSJ is generally the official source of the prime rate.