If you fear the ocean, this fact-based quiz might not be suitable for you. Oceans span around 70% of the Earth’s surface, yet much of their depths remain unexplored. These depths are less enigmatic to Jeffrey Marlow, author of “The Dark Frontier: Unlocking the Secrets of the Deep Sea.” Marlow, who conducted postdoctoral work at Harvard’s Girguis Lab, is now a biology assistant professor at Boston University. He contributed to creating this quiz, which focuses on the geology, chemistry, and biology of the ocean’s most peculiar regions.
1. Hydrothermal vents, rich with deep-sea life, can reach temperatures of 120, 280, 410, or 660 degrees Fahrenheit. 2. Standing at the bottom of the Challenger Deep would subject you to pressure equivalent to a Boeing 747, four elephants, the Empire State Building, or the Moon. 3. Beneath ocean floor sediments, there are approximately 200 billion, 6 trillion, 300 octillion microbes, or more than a googol. 4. Some deep-sea microbes combat climate change by consuming methane, a greenhouse gas. 5. The microbes on Pompeii worms produce deepsane, repurposed by humans as ultrasound gel, spaceship wiring protection, data center coolants, or anti-aging creams.
6. Seafloor materials have been adapted for uses such as anti-cancer drugs, and the marine biotechnology market was valued at $800 million, $1.1 billion, $6.4 billion, or $32.5 billion in 2025. 7. Bathymodiolus mussels in the Gulf of Mexico exhibit surprising connections to the surface, such as feeding during the full moon, seasonal spawning patterns, diurnal behavior, or a love for jazz. 8. The Osedax worm, discovered in 2002 on a whale carcass, is named for its bone-eating behavior. 9. Bathyopsurus nybelini, a deep-sea isopod, is known for swimming in unusual ways, having long antennae, or being eyeless. 10. The statement about deep-sea biodiversity being more abundant near the equator is true or false. 11. Europa, one of Jupiter’s moons, is suspected to contain liquid water, a vital ingredient for life.
Original Source: news.harvard.edu
