Answer:
Step-by-step explanation:
Based on the data in the tables, we can predict that the elevation in 8 million years will be approximately 1857 m. This prediction is based on the trend in the data, which shows that the elevation decreases by approximately 90 m every million years. Since the elevation at 3 million years ago was 1947 m, and the elevation decreases by 90 m every million years, we can predict that the elevation in 8 million years will be 1947 m - (90 m * 5 million years) = 1857 m.
The geologic processes that caused this change in elevation are likely to be a combination of erosion and tectonic activity. Erosion is the process by which rocks and sediments are worn away by wind, water, and other natural forces, which can cause the elevation of an area to decrease over time. Tectonic activity, on the other hand, refers to the movement of the Earth's crust, which can cause the elevation of an area to change as a result of uplift or subsidence. Together, these processes can cause the elevation of an area to change over millions of years.