What is a hollow: definition, species

All the irregularities of land and oceans, which differ in age, origin, size and shape, called the relief. Its main forms are the ridge, hollow, mountain, saddle and hollow.

Definition

What is a hollow? This is an elongated depression in the terrain. Lines that are located at its lowest points are called thalwegs (streams). The lateral sides of the hollow form stingrays, ending with the brow. Its bottom drops gradually.

This lowering of the surface of the earth arises mainly due to erosion, has an average depth of three to fifteen meters. The length can reach up to one and a half kilometers.

What is a hollow? This lowland, which is the result of the impact on the soil of thawed and torrential water flows. At the same time there is suffusion - the process of removal of the smallest particles of minerals by ground streams. Unevenness is characteristic of steppe and forest-steppe zones. If the blur of the hollow continues, then after a while it will turn into a beam.

What is a hollow? This is a kind of "trough", the bottom of which is flat, swampy, and the slopes are turfed, or covered with bushes and trees.

Varieties

Among the types of hollows the following geographical objects are distinguished:

1. Ravine. It is a narrow ravine, characterized by naked and steep sides.
2. Gorge. It is considered a ravine in a mountainous area.
3. Valley. Serves as a wide elongated depression, the slopes of which are shallow.
4. Beam. It is a large uneven surface of the earth, much larger in size than the ravine, which slopes cover a variety of vegetation.

On the plan of the terrain, the hollow is shown with the help of concave horizontals, depicted in the direction of the lowering of the relief. Also its varieties are holes, canyons and so on.

Grammar

What is a hollow? It is a word that must be remembered in order to use correctly, because it is a dictionary word. The letter "o" in the first syllable will not be verified by any spelling rule.

The word "hollow" is a noun. It is an inanimate object related to the feminine gender, the first declension. To him you can choose the following synonyms: the hollow, the log, the buoyak, the gully, the ravine, the yaruga, is outlined.

Thus, the meaning of the word "hollow" becomesextremely clear. This is an elongated depression on the surface of the earth, the bottom of which gradually decreases. He has three characteristic lines - two edges and thalweg. This form of relief is found in the forest-steppe and steppe zones.