JEG100 Unit 5 Practice Questions and
answers verified to pass
Global Average Albedo - correct answer ✔31%
how much solar radiation is absorbed at earth's surface - correct answer ✔In
total approximately 70% of incoming radiation is absorbed by the atmosphere
and the Earth's surface while around 30% is reflected back to space and does
not heat the surface. The Earth radiates energy at wavelengths much longer
than the Sun because it is colder.
The colder the temperature - correct answer ✔the longer wavelength
all things lose heat via radiation
counter-radiation - correct answer ✔longwave radiation that is emitted
toward the Earth's surface from the atmosphere
net radiation - correct answer ✔the difference between incoming and
outgoing flows of radiation
Greenhouse gases are most efficient at absorbing ________ wavelengths of
energy. - correct answer ✔IA: Shorter
infrared.
The planetary albedo of the Earth is about _____ percent. - correct answer
✔IA: 10
33
answers verified to pass
Global Average Albedo - correct answer ✔31%
how much solar radiation is absorbed at earth's surface - correct answer ✔In
total approximately 70% of incoming radiation is absorbed by the atmosphere
and the Earth's surface while around 30% is reflected back to space and does
not heat the surface. The Earth radiates energy at wavelengths much longer
than the Sun because it is colder.
The colder the temperature - correct answer ✔the longer wavelength
all things lose heat via radiation
counter-radiation - correct answer ✔longwave radiation that is emitted
toward the Earth's surface from the atmosphere
net radiation - correct answer ✔the difference between incoming and
outgoing flows of radiation
Greenhouse gases are most efficient at absorbing ________ wavelengths of
energy. - correct answer ✔IA: Shorter
infrared.
The planetary albedo of the Earth is about _____ percent. - correct answer
✔IA: 10
33
