Why are cloudy nights typically warmer than clear nights?
What will be an ideal response?
Answer: Although the gases of the atmosphere are not effective at absorbing the wavelengths in the atmospheric window, clouds (even those of fairly modest thickness) readily absorb virtually all longwave radiation. When the evening sky is overcast, the cloud cover absorbs a large portion of the energy that otherwise would escape to space. Warmed by this energy, the clouds emit longwave radiation downward to the surface and lesser amounts upward to space. The clouds thus act something like a blanket, helping retain heat.
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Indicate whether the statement is true or false.
What type of weathering is dominant in deserts and why? What about other types of weathering? What will be an ideal response?
Overproduction of organic matter resulting in anoxic conditions is attributed to ________
A) autotrophication B) eutrophication C) net primary productivity D) photoperiodicity E) phototropism
In your opinion, do hurricanes pose the greatest threat to the east or west coast of the United States? Explain
What will be the ideal response?