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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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kendreae kendreae
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7 years ago
John Wesley Powell put forward the idea of base level, which refers to 
A)  an imagined surface that extends inland from sea level, and is inclined gently upward. 
B)  a level below which a stream cannot erode its valley. 
C)  an evolutionary cycle of landscape development. 
D)  flat plateaus. 
E)  Both A and B are correct.
Textbook 
Geosystems: An Introduction to Physical Geography

Geosystems: An Introduction to Physical Geography


Edition: 7th
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One touch of nature makes the whole world kin.  William Shakespeare
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twentytootwentytoo
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7 years ago
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kendreae Author
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7 years ago
Good timing, thanks!
zsc999
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Yesterday
Thanks for your help!!
bbbbbbbh
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2 hours ago
This calls for a celebration Person Raising Both Hands in Celebration
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