IELTS Reading main_idea Practice
What is the primary purpose of the passage?
Question type: multiple choice · Difficulty: intermediate
- A. To argue that genetics are less important than nutrition for intelligence.
- B. To provide a list of dietary recommendations for parents.
- C. To explain how specific nutrients are essential for brain architecture in early life.
- D. To compare the effects of iron and iodine on physical growth.
Explanation Preview
The passage's main focus is explaining the mechanisms by which nutrition affects long-term learning. It details the 'critical windows' and the specific roles of nutrients like iron, iodine, and DHA in building the 'brain's architecture' and 'neurological infrastructure', as stated in paragraphs A, B, C, D, and E.