DRRR

• Gradual or slow phenomena include?

  Liquefaction
• Deforestation is a natural cause of landslides - False
• Landslide - is a geological phenomenon which includes wide range of movement
• Geological Hazards are considered "Peligro" - False
• Magma Reservoir - deepest part of the volcano
• Ash clouds accumulate inside the volcano - False
• Blasting - human activities that cause landslides
• Evacuate immediately during ground shaking - False
• Leaning fences and odd angles is an impending sign of landslides - True
• Tempra is the technical term for volcanic ash - False
• Vent - an opening in the earth's surface through which volcanic materials escape
• Volcanic ash measures 2 cm in diameter - false
• Lahar - specific kinds of mudflow made up of volcanic debris
• Cinder cones - simplest type of volcanoes
• Magma - molten rocks beneath the earth's surface
• The highest point of the volcano is the crater - false
• Pyroclastic flows are rocks of an erupting volcano that may hurl into the air - False
• increase in the frequency of volcanic quakes with rumbling sounds is a sign of an erupting volcano - True
• Pacific ring of fire is 40,000 kilometers in length
• Flank - refers to the side of the volcano
• Pyroclastic flows contain a high density mix of hot lava blocks, pumice, ash and volcanic gases - True
• The term eruption is restricted to movement of rocks and soil masses - False
• Protecting existing development mitigation strategy prevent loss of lives and properties from landslides - True
• Landslides are cavities in the ground that form when water erodes an underlying rock layer - False
• A landslide is initiated when a section of a hill slope or sloping section of a sea bed is rendered too weak to support its own weight - True
• The following are natural causes of landslides except vibrations from machinery or traffic
• Colluvium is a material which accumulates at the foot of a steep slope - True
• Which of the following is not a negative economic effect of landslides - Sewage disposal systems
• When did the landslide cherry hill happen?

  Aug. 3, 1999
• During a landslide, examine thoroughly the damaged parts and utilities of the house before re-occupying it - False
• Land use planning is one of the least effective and economical ways to reduce landslides losses by avoiding the hazard and minimizing the risk - False
• Sinkholes are dramatic because the land usually stays intact for a while until the underground spaces just get too big - True
• In this type of sinkhole, there is little soil or vegetation over the limestone or other bedrock - Dissolution
• This sinkhole happens in areas where sand covers the bedrock - Cover-subsidence
• In this type of sinkhole, the bedrock is covered by a layer of clay - cover-collapse
• These sinkholes are a result of variety of practices, from drilling to mining to changes in water diversion systems to broken pipes - Man-made
• Geography is the study of the shape and features of land surfaces - False
• One of the signs on an impending sinkhole is the rapid appearance of hole in the ground - true
• If a sinkhole is an area of traffic, barricade it to prevent motorists or pedestrians from getting to close to it - True
• Sinkholes will be less prevalent during times of increased and rapid rainfall, such as with the type of rains occurring during a hurricane - False