World Geography
The place where material is excavated when the zone of maximum stream velocity approaches the stream's bed is called

flood plain
ox-bow lakes
riffles
scoured pools

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World Geography
The rate of infiltration normally declines rapidly during the early part of rainstorm event and reaches a constant value after several hours of rainfall. The factors responsible for this phenomenon are I. the filling of fine soil pores with water, which reduces capillary forces II. moistened soil, clay particles to swell and reduce the size of pores III. raindrop impact breaking up with soil clumps, splashing fine particles into pores

I, II
II, III
All of these
I, III

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