This figure shows four numbered river terraces, with 1 being the highest and 4 being the lowest. Which is the youngest terrace?
A) 1
B) 2
C) 3
D) 4
D) 4
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Why is the solution to pollution not always dilution?
A) Liquid pollutants cannot be dissolved in water. B) Some pollutants cannot be dissolved in any solvent. C) Some pollutants are toxic at such low concentrations that they cannot be practically diluted. D) Water itself is a pollutant.
Any of the so-called lower primates, including tree shrews, lemurs, lorises, and tarsiers:a
australopithecines d. hominoids b. prosimians e. anthropoids c. hominids
Weather data necessary for forecasting includes barometric pressure, surface air temperature, dew-point temperature, wind speed and direction, and precipitation patterns
Indicate whether the statement is true or false
Which of the following is true of cytokines?
A) They are highly specific antibodies. B) They are long lived. C) They transmit intercellular communications. D) All of the above are correct.