Kelime BilgisiSoru #10020
Deep Sea Hydrothermal Vents
Until the late 1970s, oceanographers believed that sunlight was an absolute (I)---- for sustaining macroscopic life on Earth. However, the discovery of deep-sea hydrothermal vents along mid-ocean ridges shattered this assumption. In these volcanic fissures, water reaching temperatures above 350°C spews forth, laden with dissolved minerals and hydrogen sulfide. Instead of relying on solar energy, specialized bacteria (II)---- sulfur compounds to generate cellular glucose. These microorganisms thrive in symbiosis with giant tube worms and vent crabs, (III)---- an entire food web independent of solar radiation. The sheer resilience of these organisms has led astrophysicists to hypothesize that life could (IV)---- exist under the icy crusts of Jovian moons like Europa, (V)---- geothermal activity warms subsurface oceans. Choose the best option to complete blank (I) in the passage.
- A)coincidence
- B)obstacle
- C)nuisance
- D)distraction
- E)prerequisite
Cevabı ve çözümü göster
Doğru cevap: E) prerequisite
Çözüm: "An absolute prerequisite" (mutlak bir ön koşul/şart). Güneş ışığının yaşam için zorunlu bir koşul olduğu sanılıyordu. Doğru cevap E'dir.