|The oceans, atmosphere, and land all play critical roles
in sustaining life on Earth. The characteristics of ocean currents, wind patterns, and
topography can make one area a desert and another a rain forest.
Seasonal changes greatly affect Earth's plant life or vegetation. The shades of green and yellow show how leaf bearing plants "green up" and decline through the seasons of a year. The vast deserts of North Africa, the Arabian Peninsula, and central Asia are easily recongnized because of the lack of vegetation.
|This image displays the composite of SeaWiFS land and ocean data. Land and cloud features are represented in "true color".|
Next: The Earth at Night