Why do we believe that the presence of methane in titan's atmosphere probably means that it is geologically active?
a. sulfur compounds in magna reacts with the rocks in the ground to produce methane.
b. methane is easily destroyed by ultraviolet photons coming from the sun.
c. methane is easily destroyed in the hot atmosphere of titan.
d. the only known source of methane on solar system bodies is from volcanism.

Which statement best explains the difference between weather and climate

Match the following items. 1 1 (4,4) 2. (-4,-2) 3. (3.-6) 4. (-4, 6) 5. (1,5)

What is the difference between the cultures of central asia and the caucasus region? the majority of people in central asia are muslim; the majority in the caucasus region are christian. the primary language in central asia is armenian; the primary language in the caucasus region is russian. central asia has been plagued by ethnic unrest; the caucasus region has had little ethnic conflict. the effects of soviet rule can still be seen in central asia; the caucasus region has developed its own identity since the fall of the ussr.