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GED Science

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Set · 2026-10

A bacterial population contains a few resistant individuals before antibiotic exposure. After exposure, resistant bacteria become more common. Which explanation best fits natural selection?

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2026-10 · 30 practice questions with explanations

Original, independent study material. This is not an official exam paper.

U.S. GED Science skill practice emphasizes interpreting evidence, experimental design and quantitative reasoning in original scenarios. Single-best-answer review; not a full-length or official GED assessment.

10 questions on this page

  1. A bacterial population contains a few resistant individuals before antibiotic exposure. After exposure, resistant bacteria become more common. Which explanation best fits natural selection?

  2. In the food chain grass -> rabbit -> fox, which organism is the producer?

  3. If a habitat loses most of its flowering plants, which population is most directly likely to lose a food source?

  4. Which process returns water vapor from liquid water to the atmosphere?

  5. What primarily causes Earth's seasons?

  6. What causes most earthquakes near tectonic plate boundaries?

  7. Which observation describes weather rather than climate?

  8. Why can increased atmospheric carbon dioxide contribute to warming?

  9. A student concludes that all lakes are polluted after testing one lake beside a factory. What is the main problem with the conclusion?

  10. Two independent teams use the same documented method and obtain similar results. What does this most directly strengthen?

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