Which term describes the average length of time an atom of an element spends in the ocean?
a. longevity
b. durability time
c. saturation time
d. residence time
e. steady state
d
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During Phase 3 of migration to the U.S. (1870 -1920), where did the majority of immigrants come from?
A) England and Africa
B) Ireland and Germany
C) Southern and Eastern Europe
D) Canada and Latin America
E) Latin America and Asia
What part of the water cycle requires direct input of solar energy?
A) precipitation B) condensation C) evaporation D) infiltration
____________________ were short or long-necked marine reptiles that gave birth to live young. Fill in the blank(s) with the appropriate word(s)
If a person found a fossil and presented it to William Smith, what would the scientist be able to conclude about that fossil?
A) which type of animal it was and where it had lived B) which layer the fossil had come from and where that layer was exposed C) where the fossil was found and what type of animal it was D) when the animal had lived and which layer it had come from