Question 13 With respect to nutrient spiraling in streams, slow water flow and h

Question

Question 13

With respect to nutrient spiraling in streams, slow water flow and high amounts of biological activity results in ______ rates of recycling and ______ distances between spiral loops.

fast, long

fast, short

slow, long

slow, short

cannot be determined

Question 14

If a lake is stratified during the winter and summer and mixes during the spring and autumn, it is a _______________ lake.

Monomictic

Meromictic

Dimictic

Dystrophic

Mesotrophic

Question 15

In a lake, the critical mixing depth is the depth at which

Photosynthesis is equal to respiration

Integrated gross production is equal to algal respiration

The temperature change is the greatest

Oxygen is least abundant

Light is 1% of incident radiation

Question 16

A river with very high water velocity and very little biological activity would be expected to have _____________ rates of nutrient cycling and ___________ distances between

fast, long

fast, short

slow, long

slow, short

cannot be determined

Explanation / Answer

Q13: fast rate of recycling, short loops

Question 14: dimitic lakes in which water mixes twice a year are dimitic

Q.15: photosynthesis equals to respiration

Q16: slow nutrient cycling and long distance between loops

Q17: cyanobacteria

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