Who was the astronomer who suggested that the earth revolves around the sun 1700 years before Copernicus?
a. Ptolemy
b. Aristarchus of Samos
c. Aristotle
d. Bruno
b. Aristarchus of Samos
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A study has found a positive correlation between smoking cigarettes and schizophrenia. What is a possible explanation for this finding?
a. Emotional problems experienced during childhood cause schizophrenia. b. Some property of nicotine could be part of the cause of schizophrenia. c. The gene that carries schizophrenia also increases the potential for smoking. d. A fourth variable could be causing both.
Which of the following would qualify as physical neglect?
a. supervision from the next room b. refusing to allow an adolescent to see friends c. delay in seeking health care d. letting a teenager come home from school alone
_____ love occurs rapidly and ends within a few months, whereas _____ love develops more slowly and can continue throughout the rest of the life span.
A) Sexual; compassionate B) Passionate; companionate C) Immature; equitable D) Passionate; equitable
The compression and expansion of air molecules is a source of
a. light waves. c. hue. b. pheromones. d. sound waves.