weather hazards and climate change Flashcards
(7 cards)
1
Q
what are some natural causes of droughts?
A
increased solar variation ( high temps ) and lack of rainfall
2
Q
what are some human causes of droughts?
A
building dams and deforestation
3
Q
in california, what were the impacts of the drought?
A
forest fires, intrusions of sea water and subsidence
4
Q
whats the difference between hydrological and meteorological droughts?
A
hydological- hasn’t rained so much that water reserves are empty. meteoroligcal- less than normal precipitation.
5
Q
what are some natural causes of climate change
A
volcanic eruptions and solar variation
6
Q
explain eccentricity
A
it refers to the way the earth orbits the su, the more circular of an orbit, the warmer periods, however, if the orbit is more elliptical, the period will be colder
7
Q
A
