Why is there a large, permanent dead zone off the coast of Louisiana?
A. oxygen-depleted water from the Mississippi River
B. large spills from leaking oil pipelines
C. toxic metal poisoning from oil refineries
D. red tides
Answer: A
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Which property gives water an unusually high surface tension resulting in a surface "skin" capable of supporting small objects?
A) ?wetting B) ?adhesion C) ?high heat capacity D) ?cohesion
Which of the following best matches the description?International agreement on greenhouse gas emissions
A. Carbon dioxide. B. CFCs. C. climate change. D. Nitrous oxide. E. IPCC. F. Global warming. G. greenhouse gases. H. Methane. I. Kyoto Protocol. J. Greenhouse effect.
This region constitutes the hearth of Christianity:
a. Palestine. b. Babylonia. c. Jerusalem. d. Israel. e. the United States.
A hypothesis is supported by more scientific observation and research than a theory.
Answer the following statement true (T) or false (F)