Which of the following best explain what we think happened to outgassed water vapor on Venus?
A) Ultraviolet light split the water molecules, and the hydrogen then escaped to space.
B) It turned into carbon dioxide by reacting with nitrogen in Venus's atmosphere.
C) Water was removed from the atmosphere by chemical reactions with surface rock.
D) It is frozen as water ice in craters near the poles.
A
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General Questions: You are in a train traveling on a horizontal track and notice that a piece of luggage starts to slide directly toward the front of the train. From this observation, you can conclude that this train is
A. speeding up. B. slowing down. C. changing direction. D. speeding up and changing direction. E. slowing down and changing direction.
Saturn has a magnetic field whose strength is similar to the Earth's
Indicate whether the statement is true or false
Find the pressure in atmospheres in the water at the base of Dworshak Dam if the water in the reservoir is 200 meters deep. (1.01 × 105 N/m2 = 1 atm.)
A. 20.4 atm B. 24.7 atm C. 29.4 atm D. 194 atm E. 75 atm
An object is placed at a distance of 41.4 cm from a thin lens along the axis. If a real image forms at a distance of 36.1 cm from the lens, on the opposite side from the object, what is the focal length of the lens?
a. 19.3 cm b. 38.8 cm c. 10.6 cm d. 282 cm e. 6.21 cm