Temperatures in the Gobi Desert reach -40F in the winter and 90F in the summer. How far apart are these temperatures? (only type integer)

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

Answer this 30 points and brainliest!

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).