A passage says south-facing glass lets in low winter sun, and a roof overhang blocks high summer sun. Glass should be placed to:

Control heat gain and loss.

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  1. Take in as much summer sun as possible
  2. Block the low winter sun
  3. Control heat gain and loss ✔

Why: The main idea is that good placement saves fuel: winter sun helps heat the home, and the overhang keeps summer sun out. Both details serve one goal, controlling heat gain and loss.

Huh, didn't know that: Main idea questions want the choice that covers the whole passage, not just one detail.

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References

Answer: Control heat gain and loss. The main idea is that good placement saves fuel: winter sun helps heat the home, and the overhang keeps summer sun out. Both details serve one goal, controlling heat gain and loss.

  1. Paragraph Comprehension Sample Questions | Official ASVAB www.officialasvab.com/paragraph-comprehension-pc
    good orientation can minimize heat lost in the winter and gained in the summer.
    Checked 2026-10-12.

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