The correct answer is 2. The Great Rift Valley was formed by tectonic forces. These forces resulted in the Earth's crust pulling apart, creating a rift that stretches from the Middle East to East Africa. Volcanic activity is common in the Great Rift Valley, but it is not the primary cause of its formation.
The correct answer is 2. The Great Rift Valley, a geological feature that spans several countries in East Africa, was formed primarily by tectonic forces. Tectonic forces refer to the movement and collision of the Earth's tectonic plates. In the case of the Great Rift Valley, it was formed as a result of the African and Arabian tectonic plates pulling apart, causing the Earth's crust to stretch and crack. Over time, this process led to the creation of the vast rift valley we see today. While volcanic activity may have occurred as a secondary effect of the tectonic forces, it was not the primary cause of the Great Rift Valley's formation.
