Scientists Are Now Targeting Europa, One of Jupiter's Moons, as a Likely

question 6

Multiple Choice

Scientists are now targeting Europa, one of Jupiter's moons, as a likely site for searching for elementary life-forms because

• A) radio signals that follow a recognizable pattern have been detected from this moon.
• B) there appears to be large amounts of dark organic material spread on its surface.
• C) changes seen in the dark lines crossing the icy surface have a spectral signature of vegetation.
• D) there is strong evidence for liquid water beneath the thick ice layer on its surface.