Answer: <em>Mean sea level is an average level of the surface of one or more of Earth's bodies of water from which heights such as elevation may be measured.</em>
I believe it is
(Midwestern United States)
Since there is no map posted, I will tell you the location of Colombia, and hopefully you can figure it out.
Colombia is a country in South America. It is one of the two countries that occupies the northern part of the continent. Colombia is on the western (left on the map) half of the northern part of the continent. It is a country that comes out on both, the Caribbean Sea, and the Pacific Ocean. On its northeastern part it has a border with the country of Panama, on its eastern side with Venezuela, Brazil on the southeast, Peru on the south, and Ecuador on the southwest.
To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This is called the Rule of Superposition. ... With absolute age dating, you get a real age in actual years
