<span>Carbonic acid formation
CO2(g) + H2O(l) ----> H2CO3(aq)
Dissolving of calcite
CaCO3(s) + H2CO3(aq) ----> Ca(HCO3)2(aq</span>
<em>Answer:-</em>
<em>Working slowly over many years, ground water travels along small cracks. The water dissolves and carries away the solid rock gradually enlarging the cracks, eventually forming a cave. Ground water carries the dissolved minerals in solution. The minerals may then be deposited, for example, as stalagmites or stalactites.</em>
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C-...................................................
Answer:
The natural border between France and Spain is the Pyrenees.
Explanation:
Hope this helped you have a good day or night!
A natural hazard is something that occurs in nature.
A tornado, a flood, and lightning are all examples of natural hazards.
Nuclear waste doesn't occur because of nature.
So the answer is..
Nuclear waste!
