Visibility is generally better in a w air-mass than in a k air-mass
Indicate whether the statement is true or false
FALSE
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Does it make sense to say that a textbook is about 99.9% empty space?
A. No. A textbook could only be considered to be 99.9% empty space if it were combusted. B. Yes. A textbook like all material things is made up of atoms, which are considered to be 99.9% empty space. C. No. A textbook is a solid and thus is quite dense. Therefore, it is not 99.9% empty space. D. No. Only gases are considered to be 99.9% empty space. Liquids and solids are not.
Major iron deposits are found in all of the following except:
A) Iran B) Egypt C) Algeriaã D) Jordan
At 10° north, the Sun angle will reach 90° at some time during the year
a. True b. False Indicate whether the statement is true or false
Of the following temperatures, which of the following is closest to the official low temperature in degrees Celsius (and degrees Fahrenheit) ever recorded on Earth?
A) 0 (32) B) -10 (14) C) -50 (-58) D) -100 (-148) E) -140 (-228)