EXAM 3 Flashcards
how much of the world’s electricity is generated by hydropower?
17%
which country has the largest production of hydroelectricity?
China
what is the 100 yr flood?
1% chance in any year of a 100-magnitude flood
what are examples of endogenous processes?
volcanic and tectonic activities/landscapes
what are examples of exogenous processes?
water-related activities, wind, glaciers, slides
how are sequential landforms made?
created when exogenous processes wear and shape initial landforms
which country had the most substantial earthquake (in terms of magnitude) in recent history?
Chile (1960, 9.5)
what is weathering?
all processes causing rock to disintegrate physically or chemically because of exposure at or near the surface
what’s an oxbow lake?
meander river channel cut-off occurring during flood stage
how much of the total agriculture water use is affiliated w groundwater?
2/3
what unit is common with discharge rates?
cubic ft per second
largest carrier of water?
Mississippi river
is hydropower consumptive or nonconsumptive?
nonconsumptive
is irrigation consumptive or nonconsumptive?
consumptive
how old is the Earth?
4.5 billion years
what is the broadest age category?
eons
what is the most detailed age category?
epochs
what are the age categories from broadest to most detailed?
eons, eras, periods, epochs, ages
what is the surface of the Earth a reflection of?
last 66 million years
is the outer or inner core liquid?
outer
what is the outer layer of the mantle?
asthenosphere
where is the crust thickest? continents or ocean?
continents
what is isostatic adjustment?
ongoing movement of land once burdened by ice-age glaciers
what is the makeup of the Earth’s crust? (finest to broadest)
elements, minerals, rocks