Explain how the gradient, discharge, channel size, and channel roughness typically change as you migrate downstream
What will be an ideal response?
Answer: Refer to Smartfigure 3.13. Discharge, channel size, and flow velocity all increase as you move downstream. Channel roughness and gradient decrease as you move toward the mouth.
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Which of the four numbered features on this figure is the oldest?
A) 1
B) 2
C) 3
D) 4
What is the correct order of trophic levels from bottom to top?
A)primary consumer, secondary consumer, tertiary consumer, primary producer B)primary producer, secondary producer, tertiary producer, primary consumer C)tertiary consumer, secondary consumer, primary consumer, primary producer D)primary producer, primary consumer, secondary consumer, tertiary consumer E)primary consumer, secondary consumer, primary producer, tertiary consumer
In regard to the Southern Oscillation, when
A. pressures are low in Darwin, pressures are also lower in Tahiti. B. pressures are high in Darwin, pressures are lower in Tahiti. C. pressures are high in Tahiti, pressures are also high in Darwin.
In the Oceania region, the lowest population densities are found in the smallest island groups
a. True b. False Indicate whether the statement is true or false