The term "valley walls" is metaphorical; valleys do not actually have walls, they have hills. Valleys are between hills, that's why they are valleys. If there were no hills, the valley would just be a plain.
canyon
As a glacier moves through a valley, it digs deep into the walls and floor . A once-narrow valley that had a V shape becomes wider. As a glacier moves through, the valley becomes U shape .
central valley is a valley
Yes, Narmada valley is a rift valley.
No Walls ended in 1992.
U-shaped valleys are commonly caused by glacier activity on the bedrock of the valley. BUT if the rock is not strong enough to support the valley walls when the glacier retreats, then the valley, though glacier-formed, will become V-shaped. Due to wall collapse and stream erosion. This information is almost always missed when describing glacial valley formation! IN NZ, classic U-shaped valleys are thus found where the rocks are hard, such as in Fiordland where the rock is granite. Also in Westland, where the sedimentary rocks have been metamorphosed at higher temperature to be hard.
A canyon is a narrow valley with high walls and a poorly developed
The bed of a youthful valley will be steeper than the remainder of the watercourse, and the valley walls will be steeper than the remainder of the watercourse.
Valley Glacier
Sure, very common! Rainwater running down valley's walls end up in the center as a lake.
To help survive during floods .
Round the walls of the tombs of the Pharaohs in the valley of the kings.
The term "valley walls" is metaphorical; valleys do not actually have walls, they have hills. Valleys are between hills, that's why they are valleys. If there were no hills, the valley would just be a plain.
The Indus people probably wanted privacy or they used the outer walls forsomething else,maybe they put decor on the outer walls
A U-shaped valley would probably have tall cliffs on either side, with a slope appearing just as the cliff walls met the valley floor.
Yes. There is a Rift Valley in South Australia. It is very long with steep walls but has several small plains in it. Lake Torrens and the Gulf of Spencer are a part of this Rift Valley.
They are called hanging valleys. The smaller glacier valleys are the hanging walls that join the deeper main valley called the U-shaped valley.
A rift valley looks like a very huge trench. There is a wide opening at the centre of the two escarpment walls on either sides.