If you are in a tornado situation which of the following should you not do? a. avoid places with wide-span roofs such as auditoriums or cafeterias b. go to an interior room, hallway, storm cellar, basement, or lowest level of the building c. hide under a bridge or an overpass d. lie in a ditch or low-lying area, or crouch near a strong building

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.