Show AIR WAVES eighty per cent of tornadoes occur between the hours of noon and 6 p m every official weather forecast from a meteorological office requires the operation cooperation co of at least 00 1 persons air pressure is used to clear the ballast tanks of water in the submarines thereby bringing them to the surface the soot discharged into the atmosphere mo sphere of england every year represents three days coal output of the entire country the arctic is growing warmer with the aid of tropic air A russian notes that the general temperature rise affects the animals A total of distinct species of mayflies may flies native to north america are listed in a recently published book dealing with these insects |