In the USA, it is in Fort Knox, Kentucky.
In other countries that keep a gold reserve, it is in a similar
guarded, high-security central facility.
Answer: A lahar is a violent type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris and water. The material flows down from a volcano, typically along a river valley.
Explanation:
St. Lawrence River, the Great Plains, and the Rocky Mountains are major landforms that both Canada and the United States of America share. You could also say the great lakes. Hope I helped. : )
B. damages the surfaces of buildings, statues, rocks, and leaves.
Acid rain is rain combined with sulfur dioxide and nitrogen oxides, meaning it’s pH level will be around 4.0, a slightly acidic value. Knowing this, we can conclude that consistent exposure to this substance will causes calcite to dissolve in marble and limestone composed statues. This will severely damage the exterior of most statues. For instance, smoother surfaces will be weathered and abraded, and particular designs will wear away.