This planet's polar ice caps are melting at an alarming rate due to increased greenhouse gas emissions in the past two centuries.
The "iron catastrophe" is thought to be responsible for this body's magnetosphere. Objects that orbit near this body include the Apohele, Atens, and Amors asteroids. This body's multiple banded iron formations give evidence for a period in which it was completely frozen over. This body was hypothesized to have been hit by an object named Theia to form its only natural satellite. Iridium deposits on this body date to about the same time as its Chicxulub (CHICK-su-loob) crater was formed. This planet's polar ice caps are melting at an alarming rate due to increased greenhouse gas emissions in the past two centuries. For 10 points, name this third planet from the Sun.
The "iron catastrophe" is thought to be responsible for this body's magnetosphere.
Earth