Why earth is called unique planet

What season is it in the southern hemisphere when it’s december? a) fall b) spring c) winter d) summer

What is the "great pacific garbage patch"? (a) a large area of marine debris concentrated by rotating ocean currents (b) a large area around the pacific rim where debris collects from natural disasters such as tsunamis (c) an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability (d) a large trash dump located in hawaii

When you cross a time zone going east, what happens to the time