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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
Which of the following may act as a base level? 
A)  a lake that a river flows into 
B)  sea level 
C)  the upper surface of a waterfall 
D)  all of the above 
E)  A and B only
Textbook 
Geosystems: An Introduction to Physical Geography

Geosystems: An Introduction to Physical Geography


Edition: 7th
Author:
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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
wrote...

7 years ago
Thank you, thank you, thank you!
alpheratz
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Yesterday
Good timing, thanks!
prime7105
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2 hours ago
Helped a lot
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