The cumulative cause of desertification is outlined. The cycle begins when vegetation is removed. This vegetation would normally hold moisture, which evaporates into the atmosphere due to the warm climate. The evaporated moisture condenses to form clouds and rainfall normally occurs in the afternoons. If the vegetation is removed, the soil becomes drier and there is less moisture available for evaporation. Rainfall decreases and dry soil can easily be blown away.
This clip could be used alongside clips 01771 and 01772. Clip 01771 could be played as a starter activity where students have to guess what the clip is about. The teacher could then play this clip to give the answer.
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