Answer:
Option (5)
Explanation:
The Black Hills are the small isolated ranges of mountain that are located at the Great Plains of Northern America.
On 9th and 10th June of 1972, there occurred flood in the Black Hills of Southwestern part of Dakota, due to the heavy rainfall and flash flood. This floodwater drained along the creeks of Black hills.
The rocks in the black hills are slightly tilted at about 4° from the northeastern part to the southwest of the Black hill area.
There are various tourist places in the Black Hills, where the president's face was made on the exposed granitic rocks by the use of chisels.
The regions of black hills also contained various gold deposits but the amount in these deposits was less and so was not profitable.
Thus, the correct answer is option (5).