Compare the seasons on Titan to the seasons on Earth.

Since Titan orbits roughly along Saturn's equatorial plane, and Titan's tilt relative to the sun is about the same as Saturn's, Titan's seasons are on the same schedule as Saturn's—seasons that last more than seven Earth years, and a year that lasts 29 Earth years.

Mgo2 is the oxidation state of manganese oxide

Maybe you should get some from your teacher and learn more so you can get your grades up and maybe study a bit more