Important state variables measured for parcels of water in the ocean are therefore temperature, which is related to the heat content, salinity, which is related to the amount of dissolved matter, and the pressure (Table 1).
Medical marijuana now legal in 24 states. Pennsylvania just became the 24th U.S. state to legalize medical marijuana. Governor Tom Wolf approved the measure Sunday, allowing the sale and consumption of cannabis for treating specific diseases or symptoms.
Advocates had hoped to make Ohio the latest state to legalize pot for recreational use -- something that has happened in Oregon, Washington, Colorado and Alaska, as well as in Washington, D.C. (Medical marijuana is legal in 24 states and D.C.) Related: Follow other statewide vote results.