The age of the earth is estimated to be ________ billion years.
A. 5.0
B. 5.5
C. 4.0
D. 4.5
Answer: D
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Which of the following air conditions are indicated by a fanning shape plume rising from a smokestack?
A. inversion and unstable B. inversion and stable C. stable and neutral D. neutral and inversion
Which current is responsible for transporting heat across the north Atlantic and moderating the climate of Western Europe?
A) The Labrador Current B) The Greenland Current C) The Canary Current D) The North Atlantic Drift
Which of the following gives the correct order of pressures?
A) arterial > osmotic blood pressure > venous B) arterial > venous > osmotic blood pressure C) osmotic > blood pressure > arterial > venous D) venous > osmotic blood pressure > venous
What are the two most common biofuels?
What will be an ideal response?