The Stream Gradient of Most Rivers ____________

question 44

Multiple Choice

The stream gradient of most rivers ____________.

• A)is greater near the source than near the mouth
• B)is greater near the mouth than near the source
• C)does not change significantly as the river flows downstream
• D)is greater for a meandering stream than for any other type

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Definitions:

Biological Portion

Component or section of a biological sample or structure with specific functions or characteristics.

Phosphorus

A chemical element essential for life, playing key roles in biological molecules like DNA, RNA, and ATP, and involved in energy transfer within cells.

Biological Magnification

The process by which the concentration of toxic substances increases in each successive link in the food chain.

Bioaccumulation

The concentration of a chemical pollutant in the tissues of an organism rises over the course of the organism’s lifetime.