The changing of a substance from a liquid into a vapor or gas is called
A) condensation.
B) evaporation.
C) dew point.
D) saturation point.
Answer: B
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You observe a star very similar to our own Sun in size and mass. This star moves very slightly back and forth in the sky once every four months, and you attribute this motion to the effect of an orbiting planet
What can you conclude about the orbiting planet? A) The planet must have a mass about the same as the mass of Jupiter. B) The planet must be closer to the star than Earth is to the Sun. C) The planet must be farther from the star than Neptune is from the Sun. D) You do not have enough information to say anything at all about the planet.
State Newton's three laws of motion
What will be an ideal response?
The diagram illustrates a light source, a gas cloud, and three different lines of sight. Along which line of sight would an observer see an emission spectrum?
a. 1
b. 2
c. 3
d. 2 and 3
e. none of them
Why does Venus have such a great difference in temperature between its "no atmosphere" temperature and its actual temperature?
A) It has a slow rotation. B) It is so close to the Sun. C) It has a large amount of greenhouse gases in its atmosphere. D) It has a high level of volcanic activity. E) It has no cooling effects from oceans.