The rule of constancy of composition of sea salts for open-ocean water specifies that regardless of the salinity, the major ions always appear in the same ratio to each other.
Answer the following statement true (T) or false (F)
True
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This cloud that is NOT precipitating and covers the entire sky, forming a low blanket of clouds that causes overcast conditions. What kind of cloud is this?
A. altostratus B. stratus C. cirrostratus D. nimbostratus
Which of the following is not included in the calculation of the GNP of a coal mine?
A) The cost of fuel to run the mining equipment B) The cost of health benefits for the workers C) The gradual breakdown and need for replacement of the equipment D) The depletion of coal from the mine
Which of the following is true of amino acids dissolved in water?
A) They exist in un-ionized form at high pH. B) They exist in un-ionized form at low pH. C) They exist at un-ionized form only at the isoelectric point. D) They do not exist in unionized form at any pH.
Human ancestors developed the tendency to walk on two legs instead of four in order to accommodate ________
A) riding elephants B) hunting and gathering food in grasslands C) picking fruit D) climbing trees in the forests E) running across hot ash beds in Tanzania