Alfred Wegener is well known for hypothesizing that:
a. Earth's surface is broken into several major lithospheric plates.
b. new oceanic crust is formed at subduction zones.
c. the magnetic poles have reversed on occasion during geologic time.
d. over time, the continents change their geographic position.
e. the inner core is molten.
D
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Russia suffers from several geographic disadvantages in their economy such as distance to markets, harsh climate, and monsoon rains
Indicate whether the statement is true or false
At a meander, erosion is greatest at the point bar
a. True b. False Indicate whether the statement is true or false
________ occurs when mineral-rich groundwater permeates porous tissue and fills the empty spaces, hardening into a fossil
A) Correlation B) Radioactive decay C) Carbonization D) Permineralization
This method of soil cultivation reduces soil erosion and runoff
A) swidden farming B) multi-cropping C) short fallow D) conservation tillage E) truck farming