II)-Fill in each blank of the passage with the correct word from the box.

Can there be Life in the Environment of Titan?

Titan is Saturn’s largest moon and the second largest in the solar (1) ____________ (after Ganymede of Jupiter). It is the only moon in the solar system with clouds and a dense, planet-like (2) _____________. Scientists believe that (3) _________on Titan are similar to Earth's early years. The main (4) ___________is that, because it is closer to the sun, Earth has always been warmer. Titan's atmosphere is very cold, from -200 degrees to -179 degrees Celsius!

In the atmosphere there are layers of (5) ___________composed of complex molecules such as methane. There also may be an (6) ____________of methane, or perhaps a liquid water layer inside the moon. This type of environment, except for the cold, is the (7) ___________of environment in which scientists think (8) __________began.