the American suicide rate declined.
A bowl-shaped depression that forms around the vent of a volcano is a crater. These craters can be formed by the explosion of volcanic material or the collapse of the volcanic cone following an eruption.
Leading to war with Nubia
A calicle is a cup-shaped depression in zoology, or any cup-shaped structure.
A bowl-shaped depression at the head of a glacial valley is called a cirque or a corrie. It is typically formed by the erosion of a glacier.
Cirque
no
no
A caldera.
Poverty and the Great Depression.
The Cirque is the name given to the bowl shaped depression were the valley glaciers usually begins. A glacier basically refers to a terminus that usually ends in a body of water.
A caldera forms when the dome of a stratovolcano collapses following a large eruption, emptying the magma chamber beneath the volcano. This collapse creates a large, bowl-shaped depression in the Earth's surface.
Cirque... i am sure