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प्रश्न
Write a short note on surface run-off.
उत्तर
Surface Runoff is the portion of rainfall, which enters the stream immediately after the rainfall. It occurs, when the rainfall is longer, heavier, and exceeds the rate of infiltration. In this condition, the excess water makes ahead over the ground surface, which tends to move from one place to another following a land gradient and is known as overland flow. When the overland flow joins the streams, channels, or oceans, it is termed as surface runoff or surface flow.
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संबंधित प्रश्न
Identify the precipitation type with the help of the description given:
It is the main source of the water that you use. Sometimes it is torrential and sometimes continuous. Most of the agriculture in India is dependent on it.
Using the rain gauge in your school, measure the rainfall continuously for one week occurring in your surroundings. Make a bar graph using computers to show the amount of rainfall on the basis of the data obtained.
The falling of water towards the earth surface from atmosphere in any form is known as ____________.
The precipitation with the rain drop size of < 0.5 mm in diameter is known as _______________.
The sub-surface runoff is usually referred as interflow.
Infiltration of water is low in the region of non-porous soil.
Water entering the soil at the surface of the ground is termed as ______.
______ is the downward movement of infiltrated water through soil and rock layers.
______ appears like a powdery mass of ice.
Unit for measuring runoff rate is ______.
