Abundant evidence supports the major contentions of the seafloor-spreading theory. First, samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge.irst, samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge.
Polk County Weather. The average temperature of Polk County is 72.96Â°F, which is higher than the Florida average temperature of 71.80Â°F and is much higher than the national average temperature of 54.45Â°F. Historical Weather. Heating Cost Index, #14.
Weather in Florida. The southern US state of Florida lives up to its sobriquet of being âThe Sunshine Stateâ, boasting ideal holiday weather. The northern and central parts of the state experience a warm temperate climate, while in the south conditions are tropical. Despite a preponderance of sunshine all year round, Florida has a rainy season between June and September, when it is prone to thunderstorms, tropical storms, cyclones and tornadoes.