My name is jeff and idk about the answer
<span>Sinkholes, especially like the one that occurred in Mexico City, are often sign that the water reservoir is being depleted. Usually, the water underneath the ground helps stabilize it, however if there is suddenly open space or a cavern, it can collapse on its self causing a sink hole. This could also happen from fracking and drilling.</span>
There are four key institutions which work together to run the EU the European Commission, the the European parliament the Council of European Union and Court of justice
It tells you that there used to be an ocean in the area the rock was found.
<u>Answer:</u>
The "Tian Shan" is a great resource for iron, coal and lead mining.
<u>Explanation:</u>
- The Tian Shan that is located in the central part of Asia is a huge system of various mountain ranges that are said to have formed in the Pliocene period, about '7 to 2.5 million' years ago.
- It is spread over an area that is 2500 kilometers long and about 500 kilometers wide.
- The Tian Shan hosts numerous deposits of coal, iron, and lead.
