Question

Match each important characteristic or process of Titan'satmosphere with the gas(es) and/or mechanism(s) that are thought tobe responsible.

A. Titan experiences clouds, rainfall, evaporation, and ice -the three phases of methane - as on Earth we experience the threephases of water, due to...

B. Atmospheric methane lost to photodissociation and otherchemical reactions must be replaced from...

C. Nitrogen, N2, is the dominant gas. The nitrogen comesfrom...

D. The temperature profile with altitude includes an inversionproducing a stratosphere, as on Earth (and no other planets). Thesource of heat in the upper atmosphere is...

E. An orange "tholin haze" colors the lower atmosphere. The hazeis due to...

F. Hydrogen is produced by photodissociation of methane but isnot observed in the atmosphere because of...

Micron-sized particles of hydrocarbons and other organicmolecules, formed via photochemical reactions in the upperatmosphere.

Dissociation of ammonia, NH3, incorporated in Titan at itsformation.

Absorption of sunlight by methane, CH4, in the upperatmosphere.

The surface temperature and pressure of Titan being close to thetriple point of methane.

Evaporation of methane from surface lakes on short timescales,and release from Titan's interior via volcanic processes ongeological timescales.

Thermal escape processes, with light gases moving so quicklythey escape Titan's weak gravity.