Understanding Jumbled Sentences for Correct Order

This question asks us to arrange four jumbled sentences (A, B, C, and D) into a coherent paragraph. To do this, we need to identify the logical flow and the sequence of events or ideas being presented.

Analyzing the Sentences

Let's look at each sentence:

• A. The middle sun was the one we usually see every day, but the ones on either side were the sun’s smaller reflections.
• B. It looked like there were three suns in the sky.
• C. A local meteorological centre explained that reflection is caused by sunshine high in the sky and light passing through snow crystals in the air.
• D. A rare celestial phenomenon appeared in Mongolia.

Finding the Correct Sequence

We need to find an order where one sentence naturally leads to the next. Let's examine the provided correct order, DBAC, and see if it makes sense:

1. D. A rare celestial phenomenon appeared in Mongolia. This sentence introduces the main topic – a rare event happening in a specific location. This is a good starting point as it sets the scene.
2. B. It looked like there were three suns in the sky. This sentence describes what the celestial phenomenon introduced in D looked like. It provides a specific detail about the appearance of the rare event. This logically follows sentence D.
3. A. The middle sun was the one we usually see every day, but the ones on either side were the sun’s smaller reflections. This sentence further explains the appearance described in B (three suns) by differentiating between the real sun and its reflections. This provides more detail about the "three suns" and directly follows B.
4. C. A local meteorological centre explained that reflection is caused by sunshine high in the sky and light passing through snow crystals in the air. This sentence provides an explanation for the phenomenon described in A (the reflections). It gives the scientific reason behind the appearance of multiple suns. This logically follows A, completing the narrative by explaining the cause of the phenomenon.

The order DBAC creates a clear and logical flow:

Introduction of the phenomenon → Description of its appearance → Detailed explanation of the appearance → Scientific cause of the phenomenon.

Evaluating Other Options (for context)

Let's quickly consider why other options might not work as well:

• ADBC: Starts with A (explaining the three suns) without introducing the phenomenon first. D would fit better at the beginning.
• ACBD: Starts with A (explaining three suns) then goes to C (meteorological explanation) before even saying what the phenomenon looked like (B) or introducing it (D). This is very disjointed.
• DBCA: Starts with D (introduces phenomenon), B (describes appearance), C (explains cause), then A (explains the appearance details). While DBC follows a reasonable flow, placing A after C is odd because A details the appearance (three suns, real vs. reflection), which should logically come before the scientific explanation of *why* the reflection occurs (C). DBAC provides a better sequence: Introduce event → Describe appearance (general) → Describe appearance (specific detail) → Explain cause.

Therefore, the sequence DBAC forms the most coherent and logical paragraph.

Revision Table: Arranging Jumbled Sentences

Additional Information: Celestial Phenomena & Atmospheric Optics

The "three suns" phenomenon mentioned in the sentences is commonly known as a Sun Dog or Parhelion (plural: parhelia). It is a type of halo formed by the reflection and refraction of sunlight by ice crystals in the atmosphere. Sun dogs typically appear as bright spots on either side of the Sun, often at the same altitude.

• Cause: Plate-shaped hexagonal ice crystals in cirrus or cirrostratus clouds, or even ground-level ice crystals (like diamond dust), act like prisms.
• Appearance: They are usually seen at about 22 degrees to the left and right of the Sun. They can be quite bright and colourful, sometimes looking like small suns.
• Conditions: They require sunlight and ice crystals in the air, often occurring during cold weather when high-altitude clouds or ice fog are present.
• Related Phenomena: Other atmospheric optical phenomena caused by ice crystals include halos (like the 22-degree halo), sun pillars, and circumhorizontal arcs.

Understanding common introductory, descriptive, and explanatory sentence structures helps in arranging jumbled sentences effectively. Look for topic introductions, specific details, explanations, and concluding remarks to build a logical flow.