<span>Main sources of tin come from China, Indonesia, and Peru
Whilst lesser sources include Brazil, Bolivia, Australia,
There are a dozen more countries though</span>
The answer is: guess. Estimate. Like guessing a forecast. Or such.
Answer:
Sinkholes are just one of many forms of ground collapse, or subsidence. Land subsidence is a gradual settling or sudden sinking of the Earth’s surface owing to subsurface movement of earth materials. The principal causes of land subsidence are aquifer-system compaction, drainage of organic soils, underground mining, hydrocompaction, natural compaction, sinkholes, and thawing permafrost. Land subsidence can affect areas that are thousands of square miles in size.
Explanation:
dont have one
<span>Inland port cities grew in the Midwest along the Ohio River, called the Gateway</span>
