Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
The rise in the Irrawaddy dolphin (1) _______ in Chilika can be attributed to the eviction of (2)  _______ fish enclosures.After thousands of hectares of Chilika lake were made (3) _______ free, Irrawaddy dolphins found unobstructed area for movement. (4) _______, due to the COVID-19
lockdown last year, there were comparatively fewer tourist boats on Chilika lake, which made it (5) _______ for dolphins to move from one part of the lake to another.

Select the most appropriate option to fill in blank no. 5.

To determine the most appropriate word to fill in blank no. 5, we need to analyze the context of the sentence and the passage as a whole.

The passage describes positive environmental developments for the Irrawaddy dolphins in Chilika Lake:
1. The dolphin population rose due to the eviction of fish enclosures.
2. The eviction freed up thousands of hectares of the lake, providing the dolphins with an "unobstructed area for movement."
3. Due to the COVID-19 lockdown, there were "comparatively fewer tourist boats," which reduced disturbance and noise on the lake.

The sentence with blank no. 5 states: "...there were comparatively fewer tourist boats on Chilika lake, which made it (5) _______ for dolphins to move from one part of the lake to another."

Since fewer tourist boats is a positive change for the dolphins, the blank must be filled with a word that indicates a positive, helpful, or favorable condition. Let's evaluate the given options:
- conducive: making a certain situation or outcome likely or possible; favorable or helpful. This fits perfectly because fewer boats created a favorable/easy environment for the dolphins to swim around.
- hurtful: causing distress or harm. This is negative and contradicts the positive context.
- detrimental: tending to cause harm. This is also negative and incorrect.
- disturbing: causing anxiety or worrying. This is negative and incorrect.

Therefore, the word that best fits the context is "conducive".