Solve the problems below that relate to the magnitude of Earth history. To make calculations easier, round Earth’s age to 5 billion years. a. What percentage of geologic time is represented by recorded history? (Assume 5000 years for the length of recorded history.) b. Humans and their close relatives (hominins) have been around for roughly 5 million years. What percentage of geologic time is represented by the history of this group? c. The first abundant fossil evidence does not appear until the beginning of the Cambrian period, about 540 million years ago. What percentage of geologic time is represented by abundant fossil evidence?

Q: Which are behaviors to avoid in the computer classroom? Select 3 options. saving your work often O…

A: Any classroom is solely a place for learning about diverse dimensions. It isn't just about…

Q: These characteristics also affect the storm surge, but even more so, because of climate change, by…

A: 10)Ans:d  All of the above. *By reading the above passage we can clearly see that the above  points…

Q: Refer to Section I.5 in the Introduction, titled “The Nature of Scientific Inquiry,” to answer the…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: stream landform feature is found at the end of the Sandy River

A: Stream landforms like levees, braiding,deltas etc are found at the end of th

Q: Do aerosols spend more or less time in the atmosphere than greenhouse gases such as carbon dioxide?…

A: Greenhouse gases like Carbon Dioxide resides in the atmosphere for a very long time, for about…