Theme 3 - Tectonics Flashcards

Question

how do lava tubes form?

Answer 1

Lava flows from volcanic eruptions, the eruptions tend to become channeled into a few main streams. The overflow of lava from the streams often cools and solidifies creating stacked layers of lava around the flow. After many hours or days the lava melts downward into the ground giving the tube a taller more narrow cross-section. A solid crust can form overhead and enclose the tube. The tube then insulates the flowing lava within, allowing it to flow great distances. After the eruption subsides and the flows harden these lava tubes become a cave.

Answer 2

the point of the earths surface directly above the surface - usually the place of most damage

Answer 3

the exact point bellow th earths surface when the plates slip

Answer 4

size of the earthquake quality of emergency services building design and construction time of day education physical landscape

Answer 5

its an lic, 60 percent of the population live below the poverty line over half of Haitians are undernourished, limited access to basic resources poorly constructed buildings/ no building costs weak political governance

Answer 6

its an lic, 60 percent of the population live below the poverty line over half of Haitians are undernourished, limited access to basic resources poorly constructed buildings/ no building costs weak political governance

Answer 7

over 220,000 people killed, 300,000 injured and 1.3 million people made homeless - around 3 million affected the large number of deaths meant that hospitals and morgues became full and bodies then had piled on the streets large number of bodies meant diseases especially cholera killed at least 7,000 people because there was not enough water sanitation people were squashed into shanty towns - leading to poor sanitation health and a big looting problem

Answer 8

1 in 5 people lost there jobs because so many buildings where destroyed - largest industry clothing was badly affected total damage was 11.5 billion dollars

Answer 9

homes destroyed or badly damaged transport and communication links damage hospitals and schools were badly damaged the prison was destroyed and 4,000 inmates escaped difficulties getting aid to Haiti because of the airport control tower that was destroyed and bad management

Answer 10

a huge wave or series of waves usually caused by an earthquake on the ocean floor

Answer 11

destructive plate margin

Answer 12

violent movements of the ocean floor such as those during an earthquake this movement displaces huge amounts of water upwards which creates a series of waves

Answer 13

water draws back suddenly into the sea birds fly and squeak out

Answer 14

in Bandsarlteeh 1,500 settlements wiped out foreign visitors dropped dropped by 80 percent in 2005 220,000 people died 650000 were seriously injured 2 million displaced threat of disease

Answer 15

dozend of buildings destroyed in intial earthquale in indonisia public buildings where wiped out

Answer 16

60 percent of fishing industry was destroyed foreign visitors dropped by 80 percent in 2005

Answer 17

a fast moving mud flow

Answer 18

when ice or snow on the side of volcano melts and mixes with the soil and rocks

Answer 19

57 people died from eruption almost instantly, from a cloud of hot ash and dust that came down the mountain massive areas of crops and forest are wiped out - damage to crops is estimated at 175 million dollars

Answer 20

mudflows 200m thick flow down the mointain causing rivers to be blocked - took the

Answer 21

the number of tourists visiting the area increased to view the devastation and recovery of the landscape, plants and animals