Advanced English Primary 4 Comprehension

Read the passage and answer the question. Passage: "Despite warnings from environmentalists, the coastal resort was built on a stretch of beach that served as a nesting ground for sea turtles. Within two years of opening, the number of turtle nests on that beach dropped by 80%. Environmentalists argued that artificial lighting confused the turtles during nesting season. The resort management installed red lights instead of white ones and reduced lighting after 10pm. The following year, turtle nesting numbers partially recovered." Question: What can be inferred about the relationship between artificial lighting and sea turtles?

A Bright artificial lighting disrupts sea turtles' nesting behaviour
B Sea turtles prefer to nest in well-lit areas
C Artificial lighting has no effect on turtle populations
D The resort's construction directly killed the turtles
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Worked Solution

Step 1: Identify the cause-effect chain: resort opened → turtles confused by lights → nests dropped 80%. Step 2: Resort changed to red lights and reduced lighting → turtle nesting partially recovered. Step 3: The inference: artificial (bright) lighting disrupts sea turtles' nesting behaviour — the lighting change caused both the drop and the partial recovery. Answer: Bright artificial lighting disrupts sea turtles' nesting behaviour

Correct answer: Bright artificial lighting disrupts sea turtles' nesting behaviour

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