Frost/Snow and Hail By garikaib|2017-01-17T11:22:34+02:00May 30th, 2015|Notes, O Level Geography, Ordinary Level Notes, Weather and Climate| A house and vehicle covered in snow. Image by Novinite. ZIMSEC O Level Geography Notes: Frost/Snow and Hail. Snow/Frost Caused by a sudden fall or drop in temperature. With snow ice crystals are formed in the atmosphere. When these small ice crystals collide with […]Quick NetOne, Econet, And Telecel Airtime Recharge Number to recharge: Airtime amount ($): EcoCash number: Buy {{error_message}} {{error_message}} Read More Comments Off on Frost/Snow and Hail