A perturbation that causes a decrease in component A leads to a decrease in component B. Is the coupling between these two components positive or negative?
What will be an ideal response?
Positive coupling, because decrease in one component (A) leads to change the same direction in the linked component (B).
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Opec
A) is a cartel of oil-producing countries. B) consists of Middle Eastern countries only. C) has been able to take complete control over oil prices. D) is always in total agreement in matters of production and price of oil.
Over the past 50 years, global life expectancy has
A) decreased by about 5 years primarily due to increases in viral infections. B) stayed about the same due to new diseases spread by global climate change. C) increased by about 5 years due to the development of many poor nations. D) increased by more than 20 years due to better health care and nutrition worldwide.
What class of mineral forms when the element C is bonded with element O, as in the mineral calcite?
A. carbonates B. silicates C. halides D. oxides E. sulfides
Of the more than 6,000 languages in the world, about a dozen are spoken by more than one hundred million people each.
a. true b. false