* not completed

. Which of the following correctly lists the wavelengths in order from longest to shortest?

Ultraviolet, x-rays, infrared, visible correct incorrect

Infrared, visible, x-rays, ultraviolet correct incorrect

X-rays, ultraviolet, visible, infrared correct incorrect

X-rays, visible, ultraviolet, infrared correct incorrect

* not completed

. Planck's curve shows the relationship between which two variables?

Radiation emission and wavelength correct incorrect

Temperature and wavelength correct incorrect

Radiation emission and temperature correct incorrect

Radiation emission and absorptivity correct incorrect

* not completed

. Which radiation law states that the emissivity of a substance at a given wavelength is equal to the absorptivity of that substance at the same wavelength?

Stefan-Boltzmann law correct incorrect

Wien's law correct incorrect

Planck's law correct incorrect

Kirchhoff's law correct incorrect

* not completed

. Of the following surfaces, which has the lowest albedo?

Snow correct incorrect

Sea ice correct incorrect

Asphalt correct incorrect

Dry soil correct incorrect

* not completed

. Which of the following statements about the atmospheric window is true?

It prevents infrared radiation from escaping into space. correct incorrect

It is transparent to infrared radiation. correct incorrect

It ranges from wavelengths of 5µm to 7µm. correct incorrect

It absorbs shortwave radiation. correct incorrect

* not completed

. Why does the amount of solar radiation received by a surface decrease as the sun angle decreases?

There is decreased depletion of the solar beam by atmospheric constituents. correct incorrect

The solar beam spreads over an increasing surface area. correct incorrect

The zenith angle decreases. correct incorrect

The path length of the sun decreases. correct incorrect

* not completed

. When is Earth closest to the sun?

At the June solstice correct incorrect

At perihelion correct incorrect

At the December solstice correct incorrect

At aphelion correct incorrect

* not completed

. At 45°S latitude, the maximum amount of shortwave radiation reaching the top of Earth's atmosphere will occur on approximately which date?

June 21st correct incorrect

December 21st correct incorrect

March 21st correct incorrect

September 21st correct incorrect

* not completed

. Which statement is false?

At the March equinox, the subsolar point is 90°. correct incorrect

At the June solstice, the subsolar point is 23.5°N. correct incorrect

At the September equinox, the subsolar point is 0°. correct incorrect

At the December solstice, the subsolar point is 23.5°S. correct incorrect

* not completed

. What determines the amount of radiation that a surface will absorb?

Shadiness correct incorrect

Continentality correct incorrect

Slope angle correct incorrect

Albedo correct incorrect

* not completed

. The Stefan-Boltzmann law states that as temperature increases, the rate of emission of radiation decreases.

TRUE correct incorrect

FALSE correct incorrect

* not completed

. Wien's law states that as temperature increases, the wavelength of maximum emission, along with all the emitted wavelengths, get shorter.

TRUE correct incorrect

FALSE correct incorrect

* not completed

. The sun emits longwave radiation and Earth emits shortwave radiation.

TRUE correct incorrect

FALSE correct incorrect

* not completed

. Mie scattering is non-selective.

TRUE correct incorrect

FALSE correct incorrect

* not completed

. The atmosphere is more effective at absorbing shortwave radiation than it is at absorbing longwave radiation.

TRUE correct incorrect

FALSE correct incorrect