What does the word "theory" mean when used to define plate tectonic theory or the theory of evolution?
What will be an ideal response?
Theories are not speculative ideas. Theories are rigorously tested concepts established as the best explanations for observed natural phenomena known at the time and are widely accepted in the scientific community.
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Which statement is most consistent with the scientific method?
A) Hypotheses cannot be revised after they are proposed. B) Hypotheses are tested through observations and controlled experiments. C) Scientific laws always arise fully formed and in correlating groups. D) Theories cannot be modified after they are tested.
A shopping mall is built by a developer, who buys the land, builds the structures, and leases space to merchants. The key to a successful large shopping mall is the inclusion of one or more
A) anchors. B) tall buildings. C) food vendors. D) clothing stores. E) government services.
Shivering is a mechanism in which the body generates heat by:
A. increasing the metabolic rate. B. decreasing the use of oxygen. C. decreasing the metabolic rate. D. retaining excess carbon dioxide.
Which of the following is NOT an example of non-petroleum chemical pollution?
a) caffeine b) pesticides c) oil d) human waste e) mercury