Question:

Arrange the sentences A, B, C, and D to form a logical sequence between sentences 1 and 6.
1. The main source of power in industrial undertaking is electricity.
A. Electricity from water also requires enormous river valley projects involving huge expenditure.
B. In contrast, electricity from atomic power stations will result in a tremendous saving in expenditure.
C. Besides, the mineral resources of the world required for generation of electricity are being rapidly depleted.
D. But the production of electricity needs huge quantities of coal.
6. The installation of atomic plants will help in meeting the shortage of these resources.

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Identify contrast words like "but," "besides," and "in contrast" to determine the sequence of problem-solution in paragraph arrangement questions.
Updated On: Jul 24, 2025
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Solution and Explanation

Step 1: Sentence 4 establishes electricity as the main power source for industries. The next sentence should logically expand on how electricity is produced or the challenges associated with it.
Step 2: Sentence D, starting with "but," introduces a challenge: electricity production requires huge quantities of coal, making it a natural continuation of sentence 4.
Step 3: Sentence A continues the discussion of electricity production methods, mentioning that electricity from water (hydropower) requires costly river valley projects, adding another challenge.
Step 4: Sentence C, starting with "besides," adds another issue: the depletion of mineral resources (like coal) needed for electricity generation, building on D and A.
Step 5: Sentence B, starting with "in contrast," offers a solution by introducing atomic power stations as a cost-saving alternative, leading to sentence 6, which advocates for atomic plants to address resource shortages.
Step 6: The sequence DABC creates a logical flow: electricity’s importance (4), coal consumption issue (D), hydropower cost issue (A), resource depletion (C), atomic power solution (B), and conclusion (6).
Verification: Other sequences like BDAC disrupt the flow (e.g., B’s solution appears too early), and CDAB starts with resource depletion without context.
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