What is the most bushfire affected area in Australia?
100
a huge loss of income
What is social impact of drought?
100
typhoon or hurricane
What is another name for a cyclone?
100
the point on the earths surface which is the centre of an earthquake
What is an epicentre?
100
the shore line receeds
What is a sign that a tsunami is incoming?
200
the TWO types of bushfires
What is surface fire and crown fire?
200
farmers reduce live stock and decrease land under crops
What are methods used by farmers to respond to drought?
200
clockwise
What way does the air move within a cyclone?
200
the instrument that measures and detects seismic waves caused by earthquakes
What is a seismograph?
200
the 2004 Indian Ocean tsunami
What is the most destructive tsunami in history?
300
the most common vegetation fuelling bushfires
What is sclerophyll vegetation?
300
the main cause of drought in eastern Australia?
What is el Nino?
300
at least 26.5 degrees celsius
What temperature does the water need to be to form a cyclone?
300
usually occur after an earthquake
What is an aftershock?
300
the area where most of the worlds tsunamis occur
What is the 'Ring of Fire'?
400
fire brigade, police, ambulance and SES
What government agencies protect communities against bushfires?
400
the major air pressure shift between the Asian and east Pacific regions
What is the Southern Oscillation?
400
wind speeds of 165-224 km/h, structural damage, power failures
What are the effects of a category 3 cyclone?
400
the maximum extent of vibration
What is amplitude?
400
the smashing force of a wall of water and a large volume of water draining the land
What are the two main mechanisms of a tsunami?
500
they cause crown fires to become dangerous and difficult to control by engulfing tree crowns ahead of the fire front
What are firebrands?
500
one of the most dramatic consequences of severe drought where the soil lacks moisture and dries out and particles are lifted into the air by strong winds