TOPIC: The challenge of natural hazards Flashcards
some environmental impacts of climate change
forest fires
rising sea levels
desertification
tropical storms
some human impacts of climate change
lower crop yield
water supply affected
what is adaptation
adjusting to climate change
what is mitigation
action taken to reduce climate change
what are some examples of mitigation for climate change
carbon capture
planting trees
international agreements
alternate energy sources
what are some examples of adaptation for climate change
changing farming methods
managing water supply
reducing risk from sea level rise
what are 3 natural causes of climate change
orbital changes
solar activity
volcanic activity
what are the three types of orbital change
eccentricity
axial tilt
precession
how does eccentricity cause climate change
our orbit becomes elliptical, and when the earth is closer to the sun it makes the climate warmer
how does axial tilt cause climate change
it causes summers to be warmer and winters to be colder
how does precession cause climate change
every 26,000 years the earth wobbles, causing one hemisphere to receive hotter weather, and the other to receive colder
how do volcanoes cause climate change
the ash blocks the rays of the sun causing global cooling
how do sunspots cause climate change
during high sunspot activity, the climate can increase in temperature
evidence for continental drift.
same fossil types found in different continets
What is made at constructi ve plate margins
volcanoes,
what is a constructive plate margin
moving apart
what is a destructive plate margin
moving together
which plate always subducts at a destructive margin
oceanic
what is made at a destructive margin
earthquake, explosive volcanoes
what happens when two continental plates makes a destructive margin
fold mountains
what is a conservative plate margin
two plates moving side by side
what is made at a conservative plate boundary
earthquakes, if underwater causes tsunamis
how are buildings made earthquake proof
automatic window shutters to stop falling glass
steel frames, built to sway
computer controlled weights on roof, to reduce movement
what are the names of the 3 cells
hadel cell, ferrel cell, polar cell
What pressure is made from rising air
low pressure
which direction does wind flow
from areas of high pressure to low
why is the equator warm and wet
because the rising moist air causes clouds to form
why are the subtropics dry and hot
because the air is sinking, so clouds don’t form
what causes wet weather in the uk
low pressure belt
what sea temp is needed for tropical storms
26-27 degrees c
what is a storm surge
the water brought onto land from the sea during a tropical storm
is uk weather becoming more extreme
we cant prove it
What is the name of the mud flows causes by volcanic eruptions
Lahars
