What is the most useful study order while studying the Northern Plains?

Correct answer: Formation, river systems, local belts, regional parts and importance

Direct answer: Option A is correct. A good study order follows the way a geographical region is understood: first learn how it formed, then study the river systems that built and shape it, next learn the local belts such as Bhabar, Terai, Bhangar and Khadar, then study its regional divisions, and finally understand its importance for farming, settlement, transport and the economy. Option A gives this complete, logical sequence. Option B is wrong because sea islands are not the whole subject of the Northern Plains. Option C is wrong because mountain peaks belong mainly to the Himalayan topic and do not explain the plains. Option D is wrong because desert dunes describe arid regions, not the formation and structure of the river-built plains. A sequence helps a weak student connect cause, structure and human importance instead of memorising scattered words. Begin with “how made,” continue with “what rivers and belts,” and finish with “where and why important.” Memory cue: “Formation first, importance last.”