Which of the following is thought to explain why Venus has so much more atmospheric gas than Earth?
A) Most of the gases that have been released from volcanoes on Earth later returned to the surface.
B) Venus has gained much more gas through outgassing than has Earth.
C) Because of its lack of magnetic field, Venus has been able to gain gas through the impacts of solar wind particles, while Earth has not gained gas in this way.
D) Earth has lost much more gas to thermal escape than has Venus.
A) Most of the gases that have been released from volcanoes on Earth later returned to the surface.
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Isaac Newton was able to estimate a value for G, the universal gravitational constant, from the following data: the radius of the Earth is about 6 400 km, the average density of rocks is about 5.50 g/cm3, and g = 9.80 m/s2 near the surface of the Earth. What value did Newton obtain for G?
For a diverging lens, rays that enter the lens directed along lines toward the far focal point emerge from the lens
A. Parallel to the optical axis B. Diverging from the near focal point C. Converging at the far focal point D. Diverging from the far focal point.
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Given that 
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Astronomers and physicists express temperatures of the Sun and other objects on the Celsius temperature scale
Indicate whether the statement is true or false