5 Questions
Which of the following is the most widely supported hypothesis for the origin of Earth's water?
Water was delivered to Earth by asteroids
What evidence supports the hypothesis that asteroids are the source of Earth's water?
The ratio of hydrogen isotopes in meteorites matching that of Earth's oceans
How often do large meteorites collide with Earth?
Once every 20 million years
Why was the water delivered by asteroids retained on Earth's surface?
The water condensed into liquid due to cool temperatures
What is the age of the meteorites containing water that support the hypothesis of asteroid delivery?
4.5 billion years old
"Origins of Earth's Water: Asteroids as the Source? Quiz" Test your knowledge on the widely supported hypothesis that suggests asteroids as the origin of Earth's water. Explore the composition of asteroids and meteorites and discover the role they play in the formation of water on our planet.
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