Distant sources - A tsunami caused by a very large earthquake elsewhere on the Pacific Rim could reach the California coast many (4 to 15) hours after the earthquake. The Alaska-Aleutians Subduction Zone is an example of a distant source that has caused destructive tsunamis in California.
Norplant and Implanon. Norplant is the name given to a series of rods or capsules that a doctor surgically inserts into a womanâs upper arm. The inserts release progestin into a womanâs bloodstream in order to prevent the ovaries from releasing eggs. However, this mechanism only works some of the time.[1].
5. Plan B One-Step works like other birth control pills to prevent pregnancy. The drug acts primarily by stopping the release of an egg from the ovary. It may prevent a sperm from fertilizing the egg. If fertilization does occur, Plan B One-Step may prevent a fertilized egg from attaching to the womb. If a fertilized egg is implanted prior to taking Plan B One-Step, the drug will not work and pregnancy proceeds normally.