Which of the following is not required for plant growth?
A) water
B) carbon dioxide
C) nutrients
D) oxygen
E) light
Answer: D
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At any given time, about how many thunderstorms are in progress on Earth?
A) 2,000 B) 45,00 C) 45 D) 500
Which of the following is true of a voltaic cell?
A) The anode is the negative electrode and place where reduction occurs. B) The anode is the negative electrode and place where oxidation occurs. C) The cathode is the negative electrode and place where reduction occurs. D) The cathode is the negative electrode and place where reduction occurs.
Falling rain and snow is called
a. ?condensation. b. ?evaporation. c. ?sublimation. d. ?crystallization. e. ?precipitation.
Deserts are associated with all the following except ________.
A. descending air B. 30° South latitude C. 30° North latitude D. dry air E. ascending air