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 · Wind and Pressure BeltMedium · 45s
Consider the following statements about igneous rocks: They are formed through the cooling of magma. Granite and basalt are examples of igneous rocks. They are the oldest types of rocks found on Earth. Which of the statements are correct?
TopicWind and Pressure Belt
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.
All three statements are correct. Igneous rocks are the first to form in Earth's geological history.
Final Answer: Option D — 1, 2 and 3