What is the average length of time an atom spends in the ocean?
a. Longevity
b. Saturation time
c. Residence time
d. Durability time
ANS: C
Residence time explains why the ocean does not become progressively saltier with age. The residence
time of an element can be calculated by dividing the amount of an element in the ocean by the rate at
which the element is added or removed from the ocean. Information can be found in the section
Seawater Consists of Water and Dissolved Sol
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All of the following statements regarding meiosis are true except:
A. Meiosis produces haploid cells. B. Meiosis occurs in all cells in the human body. C. Meiosis is a form of cell division in which one parent cell divides ultimately into four daughter cells. D. During meiosis, a chromosome may exchange corresponding parts with its homologous chromosome.
Which city exhibits the greatest precipitation variability? Why?
The question is based on Figure 24-8, charts showing annual precipitation in Tucson, Arizona, and Bozeman, Montana, from 1905 to 2015.
What will be an ideal response?
What do these curved ridges (eskers) suggest happened on the landscape?
A) Ancient shorelines were present.
B) Meltwater channels were below or within a glacier.
C) Soft glacial sediment was shaped by the moving glacier.
D) Glacially derived, wind-blown dust was abundant.
Which of the following scenarios represents the best nonstructural approach to flood control?
A) Building an artificial levee two feet taller than the highest recorded flood B) Managing a floodplain to limit development in sensitive areas C) Paving the floodplain to increase the velocity of floodwaters D) Creating a series of dams and reservoirs to store floodwater and release it slowly over time