Question 1
The zigzag movement of sand grains along a beach is ________.
◦ called beach drift
◦ very unusual and seldom occurs
◦ caused by obliquely breaking waves
◦ both caused by obliquely breaking waves and called beach drift
Question 2
Rip currents are dreaded by surf swimmers everywhere. The standard recommendation for swimmers is if you get caught in a rip current, swim parallel to the shore. Why?
◦ The current is moving offshore but is confined, so by swimming parallel to shore you can swim out of the current.
◦ It will carry you in the longshore current which will take you ashore.
◦ This recommendation is wrong; you should swim toward the shore as fast as you can.
◦ This recommendation is wrong; you should swim with the current and wait for it to die away, then swim to shore because the currents dissipate quickly.
CycleBeads help women use the Standard Days Method.
Standard Laboratory Lipid Profiles
Surface ocean currents
Thermohaline currents flow to all oceans
Standard base-pairing relationships
One standard drink = 1/2 ounce of ethyl alcohol