Yosemite Mountain does not exist however Yosemite national park is located in California.
Answer: Battle of Marathon. Battle of Thermopylae. Battle of Salamis. Battle of Artemisium. Battle of Plataea.
Explanation: I hope this is correct. Because I am pretty sure it is not just 3.
The answer would be D.
As for The other options, it cannot be A because there is no way we could know if they are exactly similar. B states they are dramatically different when there is obviously some similarity. C states that they are from the same time period, which is impossible as there is no way a layer of sedimentary rock can be the same age as current day mud. There are likely many layers above the studied area that can denote the age.
A possible cause was a meteorite hit the earth. it caused many organisms to become extinct because it blocked out the Sun so plants couldn't grow and herbivores couldn't eat the plants and carnivores couldn't eat herbivores.