Biome: Grasslands
Date Submitted: 12/17/2003 11:33:51
Grasslands are characterized as lands dominated by grasses rather than large shrubs or trees. In the Miocene and Pliocene Epochs, which spanned a period of about 25 million years, mountains rose in western North America and created a continental climate favorable to grasslands. Ancient forests declined and grasslands became widespread. Following the Ice Ages, grasslands expanded in range as hotter and drier climates prevailed worldwide. There are two main divisions of grasslands: (1) tropical grasslands, called savannas,
Is this Essay helpful? Join now to read this particular paper
and access over 480,000 just like this GET BETTER GRADES
and access over 480,000 just like this GET BETTER GRADES
Need a custom written paper? Let our professional writers save your time.