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1. On the Venus are active vulcans.
2. The planet has only one moon.
Venus hasn´t a moon.
3. Venus is similar in size and structure to the Saturn.
Venus is often referred to as Earth's "sister planet" because of its similar size, mass, and composition.
4. Venus has a magnetic field similar to Earth's.
Venus has a very weak magnetic field compared to Earth.
5. Venus experiences extreme weather, including rainstorms and snow.
While Venus does experience extreme weather, it doesn't have rainstorms or snow. Instead, it has thick clouds of sulfuric acid and intense lightning.
6. The pressure on Venus’ surface is similar to that at Earth's sea level.
The surface pressure on Venus is about 92 times greater than Earth's at sea level.
7. Venus is sometimes visible to the naked eye during the day.
8. The clouds on Venus are composed mainly of water vapor.
The clouds of Venus are composed mainly of sulfuric acid, not water vapor.
9. Venus was named after the Roman goddess of love and beauty.
10. The Venus has an orbit in form of an egg.
Venus has the least eccentric orbit, meaning its path around the Sun is almost a perfect circle.
11. A day on Venus is longer than a day on Earth.
12. The surface of Venus cannot be seen from space due to its thick cloud cover.
13. Venus is the brightest planet in the night sky.
14. The atmosphere of the Venus is primarily composed of nitrogen.
The atmosphere of Venus is mostly carbon dioxide, with clouds of sulfuric acid.
15. Venus rotates in the same direction as most other planets in the Solar System.
Venus rotates in the opposite direction, a phenomenon known as retrograde rotation.
I would suggest you take another look into this. Especially the
Ansewers to Questions 3,4,5,10,11,15 seem wrong to me. But otherwise nice Questions and nice Quiz. Would also be great to have it in German. :D