Answer:
That is much less often than in the last 150 million years, when the field has flipped every 600,000 years. In the last 10-20 million years it has sped up even more, to once every 200,000-250,000 years. "The evidence points to a more stable field in the very far past and fewer reversals," says Veikkolainen.
Answer:
not sure, but most likely answer b: variation's in the shape earth's orbit
Explanation:
Answer:
answer for this question is sedimentary rocks
The Gulf of Mexico. It technically also borders the states of Louisiana, Texas, Mississippi, Alabama, and Florida, as well as Mexico and Cuba