Question

Реки -это ?????????????????

Answer 1

Водоёмы вроде бы... ну да, водоём

Answer 2

 природный постоянный (может сезонно пересыхать и со временем менять русло) водный поток (водоток) значительных размеров с естественным течением по руслу (выработанному им естественному углублению) от истока вниз до устья и питающийся за счёт поверхностного и подземного стока с его бассейна.

Answer 3

Rivers - What Are They?

Rivers are natural watercourses that flow in a channel, typically from higher elevations to lower elevations, due to the force of gravity. They play a crucial role in the Earth's water cycle, transporting water from land to the oceans. Rivers are formed by various sources, such as rainfall, melting snow, or underground springs, and they can vary in size, length, and flow rate.

Characteristics of Rivers

Rivers have several distinguishing characteristics:

1. Flow: Rivers are characterized by the continuous movement of water. The flow of a river can vary depending on factors such as rainfall, season, and the geography of the surrounding area.

2. Channel: Rivers flow through a channel, which is the path or course that the water follows. The channel can be narrow or wide, shallow or deep, and can change over time due to erosion and deposition.

3. Tributaries: Rivers are often fed by smaller streams or rivers called tributaries. These tributaries join the main river and contribute to its flow and volume of water.

4. Drainage Basin: A river's drainage basin, also known as a watershed, is the area of land that collects and drains water into a specific river and its tributaries. It is defined by the topography of the land, with higher elevations forming the boundaries of the basin.

5. Erosion and Deposition: Rivers have the power to erode the land through the force of their flowing water, carrying sediment and debris downstream. They also deposit sediment, creating features such as riverbanks, deltas, and floodplains.

Importance of Rivers

Rivers are of great importance to both the environment and human civilization. Here are some key reasons why rivers are significant:

1. Water Supply: Rivers serve as a vital source of freshwater for drinking, irrigation, and industrial use. They provide water for agriculture, hydroelectric power generation, and support ecosystems and biodiversity.

2. Transportation: Rivers have historically been important transportation routes, allowing the movement of goods and people. Even today, many rivers are used for shipping and trade.

3. Recreation and Tourism: Rivers offer opportunities for recreational activities such as boating, fishing, swimming, and wildlife observation. They also attract tourists who appreciate the natural beauty and cultural heritage associated with rivers.

4. Ecosystem Support: Rivers provide habitats for a wide variety of plants and animals. They support diverse ecosystems, including wetlands, forests, and riparian zones, which are crucial for biodiversity conservation.

5. Natural Landscapes: Rivers contribute to the formation of stunning landscapes, including canyons, waterfalls, and gorges. These natural features attract visitors and contribute to the aesthetic value of the surrounding areas.

Conclusion

In summary, rivers are natural watercourses that flow from higher elevations to lower elevations, playing a vital role in the Earth's water cycle. They have distinct characteristics, such as flow, channels, tributaries, drainage basins, and the ability to erode and deposit sediment. Rivers are important for water supply, transportation, recreation, supporting ecosystems, and contributing to the natural beauty of landscapes.