Which of the following lists the historical order in
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I need help with these Mcq’s
1) Which of the following lists the historical order in which these concepts were developed?
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A) continental drift, sea floor spreading, plate tectonics
B) plate tectonics, sea floor spreading, continental drift
C) seafloor spreading, continental drift, plate tectonics
D) All three concepts were developed at about the same time.
2)Which of the following is not true? Renewal time is
A) the time needed to completely replace reservoir content
B) an important variable for a polluted reservoir
C) estimated using concept of half-life
D) the amount of time required to add or subtract the amount of matter equal to that originally in the reservoir
3) The residence time, in a geochemical cycle, is the
A) average amount of time spent in a reservoir
B) average amount of time to complete the cycle
C) total amount of time to complete the cycle
D) amount of time to renew the reservoir
4) A scientific ________ is a model that has survived repeated testing whereas a scientific ___________ is a working idea which may or may not be correct
A) law, theory B) law, model
C) hypothesis, theory D) theory, model
5) Which of the following is not true? In discovery-driven science,
A) the process of deductive reasoning is used
B) the process of inductive reasoning is used
C) observations and experimentations are vital tools of investigations
D) studies are carried out at new broad frontiers of knowledge
6) Which of the following is not true? In a cycle, the residence time of a species?
A) is the average amount of time a species spends in a reservoir
B) depends on the reservoir size
C) is determined by the combined rate of addition or subtraction of species from the reservoir
D) depends on the instantaneous rate of addition and subtraction from the reservoir.
7) In positively coupled geological processes,
A) the stimulus produces a response in the same direction as the linked component
B) the stimulus produces a response in the opposite direction as the linked component
C) the stimulus produces no response in the linked component
D) none of the above occurs
8) Uncertainty in scientific investigations may arise from _________
A) the complex variability of natural phenomenon
B) errors inherent in experimental measurements
C) errors resulting from poorly calibrated instruments
D) A and B combined