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:
I think its Global Climate / Global Warming
Explanation:
This is because glaciers and ice sheets worldwide are melting and adding water to the ocean. And the volume of the ocean is expanding as the water warms.
It's approximately the size of Massachusetts
Look at the world clock on your phone
