NATURAL HAZARDS Flashcards
What is a natural hazard
Extreme natural events that can cause loss of life, extreme damage to property and disrupt human activities
What are examples of natural hazards
Flooding
Tornadoes
Climatic or tectonic
How can human activities affect natural hazards
Understanding when
Where
Why
How
What is a tectonic hazard
Occurs when the earths crust moves
What is a climatic hazard
Occurs when a region has certain weather conditions
What are examples of tectonic hazards
Earthquakes
Tsunamis
Avalanches
Volcanoes
What are examples of climatic hazards
Flooding
Tornadoes
Tropical storms (hurricanes)
Droughts
What is a destructive plate margin
Involves an oceanic plate and a continental plate.
The plates move towards each other and causes an earthquake
What is a constructive plate margin
Moves apart from each other
The magma rises up to make new land to form a shield volcano
Can cause earthquakes
What is a conservative plate margin
The plates move past each other or are side by side
Friction occurs as plates move past each other and plates become stuck
Pressure builds up with plates trying to move
Causes an earthquake
What are the 4 human activities that increase greenhouse gases in the atmosphere
Burning fossil fuels
Deforestation
Dumping waste in landfill
Agriculture
What are the natural factors increasing global warming
Orbital changes
Solar output
Volcanic activity
What are the impacts if climate change in the uk
Sea levels rising
Droughts and floods more likely
Increased water demand
Industry may be impacted
What is mitigation
To reduce or prevent the effects if something from happening
How can you manage the impacts of climate change
Alternative energy- solar or tidal
Carbon capture- removal of carbon dioxide
Planting trees- encouraging afforestation
International agreements
