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5 with that , . on .
in . are the their .
Source: NASA, 2026-10-05.
Learn with this story
Check your English
Use the article again before opening the answers.
Vocabulary
- Researchers
- people who study a subject to discover new information
- Research
- careful study used to discover or test information
- Source
- the person, organization, or document that provides information
Comprehension
What happened in this story, and why does it matter?
Answer guide
Tests aim to improve icing research. Add one supporting fact from the article.
Quick check
Which sentence best describes this story?
- Tests aim to improve icing research.
- September field tests explored ways to protect satellite navigation from false signals.
- An October 2 report explains how changing paint brightness reveals airflow pressure.
Show answer
The best answer is A.
Grammar focus: Cause and effect
Look for words such as “because,” “so,” “while,” and “as a result.” They connect an event with its effect.