Landforms River Course
- U-shape valley : Lower course
- Delta : upper course
- ox-bow lakes : lower course
which of the following pairs are correctly matched?
a) 1 and 3 only
b) 1 and 2 only
c) 3 only
d) 2 and 3 only
a) 1 and 3 only
b) 1 and 2 only
c) 3 only
d) 2 and 3 only
Ans- (c)
Explanation-Upper-course -steep-sided V-shaped valleys, interlocking spurs, rapids, waterfalls and gorges.
Middle-course -wider, shallower valleys, meanders, and oxbow lakes.
Lower-course – wide flat-bottomed valleys, floodplains, ox-bow lakes and deltas.
[ox-bow lakes are found in lower course of river as well, for reference, check 2nd page of chapter 3 of NCERT Class IX of Geography] Therefore, option (c) would be correct answer.
Explanation-Upper-course -steep-sided V-shaped valleys, interlocking spurs, rapids, waterfalls and gorges.
Middle-course -wider, shallower valleys, meanders, and oxbow lakes.
Lower-course – wide flat-bottomed valleys, floodplains, ox-bow lakes and deltas.
[ox-bow lakes are found in lower course of river as well, for reference, check 2nd page of chapter 3 of NCERT Class IX of Geography] Therefore, option (c) would be correct answer.
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