They are canyons

Old stream valleys may contain deposits of alluvial soil, sediments, and remnants of former river channels. These areas may also feature unique ecosystems and habitats due to the presence of various water sources and vegetation that have adapted to the specific conditions of the old stream valleys. Additionally, archaeological sites and fossils may be found in these areas, providing valuable insights into the region's geological and historical past.

Due to the concept of perspective, objects in the distance appear smaller than those that are closer. This allows us to see the hillside and valleys without a close-up view since our brains interpret the size relationships of elements in the scene, helping us perceive the depth and details of the landscape.

Deep valleys with cliffs or steep slopes along their sides are called gorges. Gorges are typically formed by the erosion of water flowing through the valley.

The Yellow River (Huang He) and Yangtze River valleys were the cultural hearths of the Chinese civilization. These regions were where early Chinese civilizations developed due to fertile land, abundant resources, and favorable climate. The civilizations that emerged in these valleys were among the earliest in the world.

Armchair-shaped valleys are also known as U-shaped valleys. These valleys are typically wider and have steep, straight sides with a flat bottom. They are formed by glaciers as they move through a landscape, carving out the valley into its distinctive shape.

Both hills and valleys are natural landforms that result from the Earth's geological processes. They both involve variations in elevation, with hills being elevated landforms and valleys being lower-lying areas between hills or mountains. Additionally, both hills and valleys play important roles in shaping landscapes and providing habitats for various plant and animal species.

a river forms a canyon a Vally is the space between two hills

Living in a valley can offer stunning natural scenery, protection from extreme weather conditions, and access to fertile land for agriculture. Valleys also typically have a lower cost of living compared to urban areas, making them desirable for those seeking a peaceful and more affordable lifestyle.

Parallel ridges and valleys are landforms that alternate in a repetitive pattern, resembling the shape of a wave. They are typically formed by the erosion of sedimentary rocks, with the ridges being more resistant to erosion and the valleys being eroded more easily. This landform can be found in mountainous regions, deserts, and coastal areas.

Yosemite Valley in Yosemite National Park is one of the most well-known V-shaped valleys in the world. Carved by glaciers, it features steep granite cliffs and iconic landmarks such as El Capitan and Half Dome.

Rift zones form at locations where the Earth's tectonic plates are moving away from each other. This movement creates fractures in the Earth's crust, allowing magma to rise to the surface and form new crust. Rift zones are commonly found along mid-ocean ridges and continental rift valleys.

Ravine, gorge, canyon.

German and Scotch-Irish immigrants settled in the Shenandoah Valley along their migration route in the 18th century. They were attracted to the fertile land and abundant natural resources in the valley, which supported agriculture and offered opportunities for new settlements.

After glaciation, a valley can become a U-shaped valley, which is wider and shallower compared to the original V-shaped valley. This transformation is due to the erosion caused by the movement of glaciers, which tend to widen and deepen valleys as they erode and transport material.

The valley was most likely formed by a combination of erosion from water, ice, or wind over a long period of time, carving out the landscape and creating the distinct valley shape. Factors such as the type of rock, slope of the land, and climate conditions can also influence the formation of valleys.

It's called a "hanging valley". Many waterfalls occur at hanging valleys.

Coccidioidomycoses is called Valley fever because many cases occurred in San Joaquin Valley.

The most prominent features of a narrow V-shaped valley with a rapidly dropping stream profile are steep valley walls, narrow width of the valley bottom, and a pronounced V shape that indicates erosion by the stream. These valleys often exhibit vertical erosion and can be associated with fast-flowing water and a high energy environment.

fault block

A glacial valley becomes U-shaped through the process of glacial erosion. As a glacier moves down a valley, it erodes the land beneath it through a combination of abrasion and plucking. Abrasion occurs when the glacier grinds and sculpts the valley walls and floor, while plucking involves the glacier picking up and removing rock fragments. Over time, these erosional processes create a deep and wide valley with steep, straight sides characteristic of a U-shape.

No, Denmark is a relatively flat country with no significant valleys. The landscape is characterized by rolling hills and coastal plains rather than deep valleys.

A narrow valley is a small, enclosed area between mountains or hills. It typically has steep sides and a stream or river running through it. Narrow valleys can create picturesque landscapes and offer unique ecological habitats.

The East African Rift Valley is a tectonic plate boundary where the African Plate is splitting into two, creating stunning landscapes and volcanic activity.

Valleys have both positive and negative effects on humans. They can provide picturesque landscapes for recreational activities and agriculture, while also creating barriers to communication and transportation. Additionally, valleys can influence weather patterns and air quality in surrounding areas.