Which are the most abundant organic compounds in the plant world?
A) alcohols
B) amino acids
C) carbohydrates
D) proteins
C
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The zone in transition
A) contains apartment buildings, public housing and old neighborhoods. B) is outside the area of gentrification. C) is where railway terminals and the intersection of transportation networks are found. D) typically contains edge cities.
Which of the following statements best describes why a large nucleus is more likely to undergo radioactive decay?
A. The nuclear forces are not as strong as the repulsive electrical forces between nucleons. B. The proton-proton repulsion cannot overcome the nucleon attraction. C. All nuclei are equally likely to undergo radioactive decay. D. The nucleon-nucleon attraction is stronger than the proton-proton repulsion. E. The nuclear force between the nucleons are very strong and squeeze out other nucleons.
Chinese make up about _______ percent of Southeast Asia's population.
A. 15 B. 12 C. 10 D. 7
Which of the following does not apply to manipulative experiments?
A. Most experiments are done in the laboratory B. They can be affected by experimenter bias C. They are useful for studying large scale geologic forces D. Extraneous variables are held constant