Answer:
The correct sentence is, "When she was riding down to her grandmother's house, Jody crashed her bike." because the first sentence implies that the bike was riding down to her grandmother's house.
The orbit is not circular its shaped more like an oval. During the 3rd of January the northern part of the planet experiences summer and the southern experiences winter. During this time the earth is the closest to the sun than it will ever be along its orbit path. On the 3rd of July however the earth is the farthest away it will be during the year and the northern part of the planet now is experiencing winter while the southern experiences winter.