One is not among the characteristics of Upper course of rivers?Question 5Answera.Meandersb.Vertical erosionc.Rapidsd.Gorges

Step 1: Break Down the Problem

We need to identify which of the given options is not characteristic of the upper course of rivers. The options are:

1. Meanders
2. Vertical erosion
3. Rapids
4. Gorges

Step 2: Relevant Concepts

The upper course of a river is typically characterized by:

• Steep gradients
• Vertical erosion, which leads to deepening of the river valley
• Formation of features such as gorges and rapids due to high energy
• Minimal meandering due to the steep terrain and direct flow

Step 3: Analysis and Detail

1. Meanders: Typically found in the lower course of rivers where the gradient is gentle. In the upper course, rivers tend to be straight due to the steep topography.
2. Vertical erosion: A key characteristic of the upper course as the river cuts downwards into the landscape.
3. Rapids: Common in the upper course where the river flows rapidly over steep gradients and rocky beds.
4. Gorges: Often formed in the upper course through the process of erosion, contributing to the dramatic landscape.

Step 4: Verify and Summarize

Among the options, meanders are the least characteristic of the upper course of rivers. Meanders are more commonly associated with the lower course where the river has more energy to curve and wind due to a gentler slope.

Final Answer

Meanders