The first major american commercial area in oklahoma was located

Ihave no idea what the answer is

Ba rock that formed 1,400 million years ago!

It's probably because the earth is actually tilted and is not straight when orbiting the sun. that's why when it's winter here, it's summer in the southern hemisphere. in the wintertime in the northern hemisphere, it's colder here because it's tilted away from the sun and the southern hemisphere is tilted closer to the sun (i believe this is the case anyways)

The oldest is  found in the  west pacific and north-west atlantic.