The Earths revolution and the Earths tilt cause the changing seasons
So the correct answer is D.
Hope this helps,
Davinia.
Travel by water was quicker and better for long distance. However boats need to be built and are bulky. Travel by land is stealthier. Both have safety risks. Storms and jagged rock play a risk in water transportation. Land transportation can also be more exhausting, and more suspect to pillaging.
Columbus was sailing under Spain's flag when he discovered the America's
The economic development of the mid-atlantic, new england, and southern colonies differed mainly because of climate (the north colonies were much more cold than the southern, which limited the amount and the types of plants they can grow), soil (northern soil was not as fertile as southern), resources found (there were greater amounts of fishes in the north then south, and so the Northern colonists built up a "fish economy" instead of farming.)
hope this helps
