May 2015

Frost/Snow and Hail

By |2022-09-15T12:44:38+02:00May 30th, 2015|Notes, O Level Geography, Ordinary Level Notes, Weather and Climate|

A house and vehicle covered in snow. Image by Novinite.

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 […]

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Rainfall

By |2022-09-15T12:44:50+02:00May 21st, 2015|O Level Geography, Weather and Climate|

Rainfall. Image via the Herald.

Rainfall. Image via the Herald. ZIMSEC O Level Geography Notes: Rainfall.
  • Rainfall is just one form of precipitation.
  • Precipitation occurs when warm moist air rises or is forced to rise.
  • Water vapor in the air parcel cools and condenses to form clouds.
  • This is because temperature falls with increase […]

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