What is the degree of rotation of the earth each hour?
Correct answer: D. 15°Exploring Educational Science Kits
- A. 1°
- B. 5°
- C. 7.5°
- D. 15°Exploring Educational Science Kits
Explanation
Earth rotates 360° in approximately 24 hours, so its average rotation is 15° per hour. The extra text after option d is unrelated to the question.
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Astronomy covers the structure and motions of the solar system, planets, satellites, comets, asteroids and meteoroids, together with gravity, eclipses, seasons and phases of the Moon. It also introduces stars, galaxies, nebulae, black holes, space telescopes and satellites, while distinguishing rotation from revolution and meteors from meteorites.
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