Question and Answer
**1. What is the name of the planet you live on?**
[Image of planet Earth]
**Answer:** Earth
**2. What is the name of the moon that revolves around the Earth?**
[Image of the moon]
**Answer:** The moon
**3. What are the other planets in our solar system?**
**Answer:** Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune
**4. What is the name of the central star of our solar system?**
[Image of the sun]
**Answer:** The sun
**5. What are the components of the solar system?**
**Answer:** Planets, moons, asteroids, comets, and meteorites
**6. What is the name of the star group in which the Sun is located?**
[Image of Taurus]
**Answer:** Taurus
**7. What is the name of our galaxy?**
[Image of the Milky Way Galaxy]
**Answer:** The Milky Way Galaxy
**8. How many galaxies are in the universe?**
**Answer:** No one knows for sure, but scientists estimate that there are trillions of galaxies in the universe.
**9. What is the size of the universe?**
**Answer:** No one knows for sure, but scientists estimate that the universe is extremely massive, and extends infinitely.
**10. How old is the universe?**
**Answer:** Scientists estimate that the age of the universe is about 13.8 billion years.
**11. What is the fastest speed in the universe?**
**Answer:** The speed of light, which is about 300 thousand kilometers per second.
**12. What are the smallest components of matter?**
**Answer:** Atoms, which are the smallest amount of matter that cannot be divided without losing their chemical properties.
**13. What are the largest components of matter?**
**Answer:** Galaxies, which are collections of stars, dust and gas.
**14. What is the name of the solid part of the Earth?**
[Image of Earth's crust]
**Answer:** The Earth’s crust
**15. What is the name of the liquid part of the Earth?**
[Image of Earth's mantle]
**Answer:** The Earth’s mantle
**16. What is the name of the hot, solid part of the Earth?**
[Image of Earth's core]
**Answer:** The terrestrial core
**17. What is the name of the layer of the atmosphere in which we live?**
[Image of Earth's atmosphere]
**Answer:** Earth’s atmosphere
**18. What are the other layers of the atmosphere?**
**Answer:** The tropical atmosphere, the stratosphere, the lithosphere, and the troposphere
**19. What is the name of the most abundant gas in Earth's atmosphere?**
**Answer:** Nitrogen
**20. What is the name of the second most abundant gas in the Earth's atmosphere?**
**Answer:** Oxygen
**21. What is the name of the Earth's atmosphere that protects us from harmful solar radiation?**
[Image of ozone layer]
**Answer:** The ozone layer
**22. What is the name of the planet that revolves around the sun in the fastest time?**
**Answer:** Mercury
**23. What is the name of the planet that revolves around the sun in the slowest time?**
**Answer:** Neptune
**24. What is the name of the planet with the largest number of moons?**
**Answer:** Jupiter, with 79 known moons.
**25. What is the name of the planet with the smallest number of moons?**
**Answer:** Mercury, with nothing.
**26. What is the name of the planet that has the largest volume?**
**Answer:** The buyer
**27. What is the name of the planet that has the smallest size?**
**Answer:** Mercury
**28. What is the name of the planet with the highest temperature?**
**Answer:** Mercury, with a surface temperature of 427 degrees Celsius.
**29. What is the name of the planet with the lowest temperature?**
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