Which of the following statements provides the most accurate description of the principle of a lightning rod?
A. It stores the electricity carried by the discharge.
B. It intercepts the lightning and safely carries the current around the object it protects.
C. It acts to discharge the thunderstorm.
D. The positive charge induced in it repels the negative charge in an approaching stepped leader.
Answer: B
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Which of the following describes why the net force acting on air that is blowing parallel to straight contours at constant speed is zero?
A. Coriolis and pressure gradient forces are equal and pulling in opposite directions. B. Coriolis and pressure gradient forces are equal and pulling in identical directions. C. Coriolis and frictional forces are equal, and pulling in identical directions. D. Coriolis and frictional forces are equal, and pulling in opposite directions.
On what day does the Sun have its highest Sun angle and sets/rises farthest north?
A) Winter solstice B) Spring equinox C) Fall equinox D) Summer solstice
Refraction is not a part of the optical process of forming halos
Indicate whether the statement is true or false
What is the cold water phase of ENSO?
A. the Walker Circulation B. El Niño C. La Niña D. the PDO E. the NAO