Resemblances between swifts and swallows are due to convergent evolution, reflecting similar life styles based on catching insects in flight. The family name, Apodidae, is derived from the Greek á¼ÏÎ¿ÏÏ (Ã¡pous), meaning footless, a reference to the small, weak legs of these most aerial of birds.
Does Saturn have an atmosphere and what does it consist? The planet Saturn does have an atmosphere, and indeed, it consists mostly of atmosphere. The main chemical constituents of the atmosphere of Saturn are methane, ammonia, and hâ¦ydrogen. 5 people found this useful.
Surface of Saturn. What makes Saturn huge is its atmosphere. Although it has a surface, it is not as solid as other planets. Saturnâs surface is so dense that the gravity on it is particularly very weak and is only 91% compared to that of Earthâs. It will not allow anyone to take a stroll on the planet.