Concept Quiz 5

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This quiz covers key concepts 9 and 10 from Chapter 1. Answer the questions by darkening in the circle next to the correct answer. When completed with the quiz, click on "submit answers for grading" at the bottom of the page.

This activity contains 5 questions.

Auroral displays, one of nature's most interesting spectacles, occur in the atmospheric layer called the __________.

tropospherestratosphereexosphereionosphere

Occurring in the altitude range of 50-250 miles above the Earth's surface is an electrically charged layer known as the:

heterospherehomosphereionosphereaurora borealis

The ________________ consists of gases arranged into four (4) roughly spherical shells, each with a distinctive composition.

aurora australishomosphereheterosphereaurora borealis

	In the ionosphere, molecules of nitrogen and atoms of oxygen are readily ionized as they absorb high-energy, shortwave solar energy.

	True False

	The stratified nature of the gases in the heterosphere never varies.

	True False

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Concept Quiz 5

Auroral displays, one of nature's most interesting spectacles, occur in the atmospheric layer called the __________.

Occurring in the altitude range of 50-250 miles above the Earth's surface is an electrically charged layer known as the:

The ________________ consists of gases arranged into four (4) roughly spherical shells, each with a distinctive composition.

In the ionosphere, molecules of nitrogen and atoms of oxygen are readily ionized as they absorb high-energy, shortwave solar energy.

The stratified nature of the gases in the heterosphere never varies.