Module 6: Hazards
The plate boundary between the pacific ocean and south america is
ocean ocean convergence
ocean continent convergence
ocean continent divergence
mid ocean ridge
Idensity the most dangerous weather event to people living in NSW
East Coast Lows
Tornadoes
Cyclones
Bush fire smoke
Suppose the area where you live was subjected to a major earthquake. Identify the major risk to your life.
Earth movements
Cracks in the ground
Buildings collapsing
Volcanic ash
Identify the hazard when aircraft fly near an erupting volcano.
Pilots cannot seat where to fly
Volcanic ash enters the engines
Poisonous gases from the volcano enter the plane
shock waves transmitted through the air damage the craft.
Which of the following would be best used to predict the occurrence or size of an earthquake?
Seismograph
Creepmeter
Earthquake proof buildings
Animal behaviour
The death toll at Nevado del Ruiz was much higher than Pinatubo. The reason for this is likely to be:
Mudflows travel more slowly than ash flows
Early warnings were better at Mount Pinatubo
Ash flows slower than mudflows
Early warning was better at Nevado del Ruiz
Identify the factor that most influences world climate due to a volcanic eruption
Sulfuric acid aerosols
Volcanic ash
Lava flows
Pyroclastic flows.
Which of these hazards is most likely to affect the wetlands along the Murray River (NSW)?
Bushfires
Cyclones
Drought
Volcanic Eruptions
A volcano was found to have Rhyolite present in its magma chamber, had a low temperature and had explosive eruptions. It therefore has what type of lava:
low viscosity
runny
thin
high viscosity
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