Which transition word or phrase most logically completes the passage?

Answer:Exoplanet researchers analyzing the atmospheric spectra of hot Jupiters have detected significant traces of sodium and potassium in the upper atmospheres of these gaseous giants. 【Additionally】, they have identified evidence of localized silicate clouds, suggesting highly dynamic weather patterns.

Answer

An addition transition, such as 'Additionally', 'Furthermore', or 'Moreover', is correct because it logically connects the two distinct findings about the atmospheres of hot Jupiters.

The correct transition must establish an addition relationship between the two sentences. The first sentence notes the detection of sodium and potassium, while the second sentence introduces the detection of silicate clouds. Transitions such as 'Additionally', 'Furthermore', and 'Moreover' are correct because they add a related point to the previous one.

Step-by-Step Solution

Analyze the relationship between the first and second sentences.

The first sentence describes one discovery made by exoplanet researchers (detecting sodium and potassium). The second sentence describes another, related discovery (identifying silicate clouds).

Understanding how the ideas connect is necessary to determine the correct logical transition.

Determine the type of transition required to connect these ideas.

Since the second sentence adds another finding to the first rather than contradicting it or showing a direct cause-and-effect relationship, an addition transition is needed.

Selecting the correct transition category ensures the logical flow of the passage is maintained.

Select a valid transition word that fits the grammatical context.

Words like 'Additionally', 'Furthermore', 'Moreover', or 'In addition' correctly introduce a new, related point at the start of a sentence followed by a comma.

Grammatical and logical alignment ensures the passage reads correctly.

Key Concept

Transitions: Addition and Similarity

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