According to the kinetic molecular theory, which of the following is not true?
A) The average kinetic energy of gas particles is proportional to the Kelvin temperature.
B) Gas molecules are assumed to have no volume.
C) Gas pressure is caused by collisions between gas molecules and the container walls.
D) None, all of the above are true.
D
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ANS: C
Oxygen in itself is a very reactive element. It binds quickly to other materials. Remember, free oxygen only became abundant in our atmosphere when photosynthetic organisms began producing more. Thus, if there is a large amount of free oxygen, then there is something present that is replacing it in the atmosphere. This is likely to be a life-form of some sort. Information can be found in the section Are There Other Ocean Worlds
Explain how geologists calculate the distance between the epicenter of an earthquake and a given
seismograph. What will be an ideal response?
Who is responsible for enforcing water quality standards?
A. the Clean Water Act B. Department of Homeland Security C. the EPA
The existence of huge channels that look like dry riverbeds on Mars is strong evidence that it ________.
A. has a dense earth-like atmosphere B. had a Martian civilization that used irrigation C. has ocean basins and continents D. had a warm climate in the past E. is much younger than Earth