SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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3
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2
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4
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6
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Detailed explanation-1: -From the source to its mouth, a river is divided into three main sections – Upper Course, Middle Course, and Lower Course.
Detailed explanation-2: -Rivers are split up into three parts: the upper course, the middle course, and the lower course. The upper course is closest to the source of a river. The land is usually high and mountainous, and the river has a steep gradient with fast-flowing water.
Detailed explanation-3: -The journey of a river has three stages: youthful, mature, and old stage. These stages are also called upper course, middle course, and lower course.
Detailed explanation-4: -Upper Course – This part is closest to the source of the river. The land is usually high and mountainous. Middle Course – In this part the river starts to slow down. It gets wider and starts travelling in winding loops. Lower Course – It is the last course of the river.