what is a natural hazard?	A natural hazard is a physical event that has the potencial to cause loss of life or injury and damage property and infrastructure.
Wich are the natural hazards?	earthquakes Volcanic eruptions drought tropical cyclones floods
what condition a natural hazard has to be to to be a disaster	-A report of 10 or more people killed -a report of 100 or more people affected - a state of emergency declared by the government of the affected country - a request by the relevant national government for international assistance
on what depends the impact on the community?	- the length of time people are exposed to the natural hazard - vulnerability of people affected - people's ability to cope with the effects
name 3 differences between the oceanic crust and the continental crust
what is a tectonic plate?	A pice of lithosphere that moves slowly on the asthemosphere
name the plates boundaries	constructive destructive conservative
name the causes of the number of deaths and injured peopl	-the location of epicenter because the closer the epicenter the greater the damage - the time of the earthquake - the geology - the relief of the area
name 5 examples of shield volcanoes and of strap volcanoes
what conditions are needed for tropical cyclones	ocean surface at 27C° warm water must be 60m deep between latitudes 5° and 20° little wind shear
name characteristics of cyclons
name the physical and human causes of flooding
how can human activity influencce the effect that drought has on a region
name the impacts of drought
name the impacts of tectonic hazards
name the impacts of tropical storms
name the impacts of flooding
name three ways to prepare for earthquakes
name three ways to prepare for volcanoes
name three ways to prepare for tropical cyclones
name three ways to prepare for flooding
name three ways to prepare for drought