World at Risk: 1 1.0 / 5 based on 1 rating ? GeographyWorld at RiskASEdexcel Created by: NatashaLittlewood0810Created on: 11-05-14 11:21 What causes Tropical Cyclones? Sea surface temperatures above 26 degrees 1 of 11 What causes La Nina? Below average sea surface temperatures 2 of 11 What causes El Nino? Above average sea surface temperatures 3 of 11 What causes anticyclones? Drought 4 of 11 What causes an ENSO? El Nino/La Nina 5 of 11 What causes local coastal flooding? Storm surges 6 of 11 What causes landslides? Intensive rainfall events 7 of 11 What causes rising sea level? Global Warming 8 of 11 What enhances the Greenhouse Effect? Rising levels of atmospheric CO2 9 of 11 Over 40 years, what have prolonged periods of droughts accelerated in Sahel? Famine 10 of 11 How many people have died from drought disasters in Africa since 1970? 1 million people 11 of 11
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