Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · North AmericaMedium · 45s
Consider the following pairs: Grand Canyon — Colorado River Niagara Falls — Ohio River Death Valley — California Which of the pairs is/are correctly matched?
TopicNorth America
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Niagara Falls is on the Niagara River (between Lake Erie and Lake Ontario). The Grand Canyon is carved by the Colorado River; Death Valley is indeed in California.
Final Answer: Option C — 1 and 3 only