Exam 1: Earth and Its Atmosphere

Which of the following units of pressure are most commonly used?

Which of the following best describes the ozone hole?

Which of the following factors is responsible for keeping a planet's atmosphere close to its surface?

Most of the ionosphere is located in which of the following atmospheric layers?

Which of the following describes what happens to atmospheric pressure at night, when the weather is cold and dry?

Which of the following statements applies to stratospheric ozone?

Which of the following has been the primary source of oxygen for the Earth's atmosphere in recent geological times?

Draw a diagram to show how air temperature normally changes with height. Begin at ground level and end in the upper thermosphere. Label the four main layers and give one important characteristic of each layer. Indicate on your diagram the location of the top of Mt. Everest, the ozone layer, and the ionosphere.

By volume, which of the following are the most abundant gases in the Earth's atmosphere?

Which of the following describes water vapour?

Which of the following processes describes how the aurora is produced?

Which of the following is the name for the electrified region of the upper atmosphere?

Which of the following atmospheric layers is the thickest?

The vertical profile of which of the following factors is the basis of the division of the Earth's atmosphere into layers?

Explain why our ears may "pop" with changes in elevation.