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.
Directions: In the following question, the first and the last parts of the sentence are numbered S₁ and S₆. The rest of the sentence is split into four parts named P, Q, R, and S. These four parts are not given in proper order. Read the sentence carefully and choose the correct order from the given options. S₁. The tiny bacterial plants that live in the soil help to prepare food for the plants we cultivate. P. The farmer works very hard to make the soil favourable. Q. But these soil bacteria are very necessary and helpful. R. There are millions of bacteria in a cubic inch of fertile soil. S. Some kinds of bacteria are harmful. S₆. They donot need sunlight as do most plants.
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
S₁ claims bacteria help prepare plant food — R gives supporting detail (their enormous numbers). P then notes the farmer’s role in making soil favourable for them. S acknowledges that some bacteria are harmful, and Q closes by emphasising that overall these soil bacteria are necessary and helpful, leading into S₆.