Waterfalls are beautiful and powerful, and they ar...

Question

Waterfalls are beautiful and powerful, and they are often popular tourist attractions. Waterfalls are common in the upper course near the source of a river where gradients are steep.

Waterfalls occur when the river flows over rocks of different resistance to the water erosion. A hard band of rock lies on top of the soft rock. River erosion wears away weaker rocks. The hard band of rock is eroded less quickly than the weaker rock below it, forming a step. Softer rock is undercut as the water flows over the hard rock. A plunge pool forms. Eventually the overhanging hard rock falls into the plunge pool. The broken rock is carried away by the water. The process is repeated. The waterfall retreats upstream, a gorge is left behind. The river plunged over the step often in a spectacular way.

B. How is the plunge pool formed?

S. Ratna · Accepted Answer

Jawaban yang benar adalah it was formed by river erosion. It wears away weaker rocks. The hard band of rock is eroded less quickly than the weaker rock below it, forming a step. Softer rock is undercut as the water flows over the hard rock.

Pembahasan : 
Soal menanyakan kamu bagaimana kolam terjun terbentuk.

Teks di atas menjelaskan bagaimana proses sebuah air terjun terbentuk.

"River erosion wears away weaker rocks. The hard band of rock is eroded less quickly than the weaker rock below it, forming a step. Softer rock is undercut as the water flows over the hard rock. A plunge pool forms."

Kutipan di atas menjelaskan bagaimana sebuah kolam terjun terbentuk, penyebabnya adalah erosi sungai yang mengikis batuan yang lemah.

Jadi, jawaban yang benar adalah it was formed by river erosion. It wears away weaker rocks. The hard band of rock is eroded less quickly than the weaker rock below it, forming a step. Softer rock is undercut as the water flows over the hard rock.

Mau pemahaman lebih dalam untuk soal ini?

Pertanyaan serupa