Exam 9: Atmospheres of the Terrestrial Planets

Would water molecules in Venus's atmosphere,whose temperature is 740 K,eventually escape into outer space? Note that a water molecule has a mass that is 18 times that of a hydrogen atom.The escape velocity of Venus is 10 km/s.For comparison,a hydrogen atom has an average velocity of 2.5 km/s at a temperature of 300 K.

Which molecule moves with the fastest average speed while being bound in the Earth's atmosphere in thermal equilibrium?

If it were not for the greenhouse effect on Earth:

If photosynthesis were to disappear on Earth:

The planet-wide flow of air from a warmer equator to the colder poles is called Hadley circulation,and an example of this effect is seen on the planet Venus.

Runaway convection in the Earth's atmosphere can lead to:

Heating from _________ causes the top of the Earth's stratosphere to be warmer than the bottom.

If the carbon dioxide in Earth's rocks were suddenly released into its atmosphere,Earth could possibly undergo a runaway greenhouse effect.

Earth's sky is blue because:

Over the last century,why has the ozone hole over the Earth grown larger? How long might it take to revert to its former state?

All weather and wind on Earth are a result of convection in the:

Hurricanes are powered by:

Each halogen atom,such as chlorine,fluorine,and bromine,in the Earth's atmosphere catalyzes the destruction of ozone for a long time ranging from decades to centuries.

The temperature differences between night and day on the Moon and Mercury are very small because they have so little atmosphere.

If water vapor were released from Venus's surface due to tectonic activity into its upper atmosphere,what would most likely happen to it?

_________ in our atmosphere is a direct consequence of the emergence of life.

When the Martian summer occurs and the daytime temperature is 20°C,water on the surface melts and forms small pools of liquid.

In the Southern hemisphere,hurricanes _________ compared to hurricanes in the Northern hemisphere due to the Coriolis effect.

If there are 10⁴ kg of air above every square meter of the surface of Earth,and Earth is modeled as a sphere of radius 6.4 × 10⁶ m,what is the mass of Earth's atmosphere and what fraction is it of the total mass of the Earth? Show your calculation.

All the terrestrial planets have atmospheres as dense or denser than Earth's atmosphere.