Answer:
1- D
2- D
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Answer:
George H.W. Bush (1989 - 1993) and Bill Clinton (1993 - 2001)
Answer:
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I'm sorry, but you didn't list the statements. If you would comment back on this, I would gladly help you. :)
Answer:
The Mazama ash is an example of a marker bed.
Explanation:
Marker beds are distinct strata that are found in other sites in the same region. They can give evidence to age of sediments in a new site if they’ve been assigned a date in other sites. The Mazama ash is consisted of fragments that were ejected into the air by a volcanic eruption of the Mount Mazama, from Oregon Cascades. It blew up 6900 years ago and the ashes were carried by the wind. When the ash settled, it created a marker bed.
