His theory states that the continents were once one and have drifted apart. Wegener named this land mass “Pangaea”, which translates “All Lands” Then he gathered evidence from around the world from landforms, fossils, and climate. He then gathered his evidence and put it in a book titled “The Origin of Continents and Oceans” which was published in 1915. But Wegener’s theory was rejected because he could not provide evidence on the force that moved the continents. One piece of evidence from an ice age shows us that continental drift actually happened.
During the Paleozoic era, may invertebrate animals existed, thriving off of the warm climate created as continents made their way closer to the equator. With algae providing oxygen to the earth, fish began to develop as did plants and trees that made their way out of the waters an unto the earths surface. During the Mesozoic era, plants with flowers and trees appeared on earth. Reptiles that flew and birds had evolved on land. This era was also the time that dinosaurs were known to exist.
Each one of these processes plays a role in the Arctic and Antarctica. We’ll discuss each in general and specifically in the polar regions. EROSION Wind, water, and ice are the three agents of erosion, or the carrying away of rock, sediment, and soil. Erosion is distinguished from weathering — the physical or chemical breakdown of the minerals in rock. However, weathering and erosion can happen simultaneously.
The Era is made up of six Geologic periods, the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and the Permian. Much of the plants and animals that exististed and evolved was due to the climate and location of the continents. At the beginning of the Paleozoic period, the continents were far apart, but by the end they were close together and on the way in forming the supercontinent called Pangaea. The land was moving by Plate Tectonics. Four hundred and thirty million years ago there was glaciation; this caused an ice sheet to cover what is now North Africa.
Classical period[edit source | editbeta] In ancient times, maritime nations such as the city-states of Greece and Phoenicia often established colonies to farm what they saw as uninhabited land. In classical times, land suitable for farming was often claimed by migratory "barbarian tribes" who lived by hunting and gathering. To ancient Greeks and Phoenicians, the land was regarded as simply vacant. However this does not mean that conflict did not
Mount Nimba is one of the World Heritage Site and a transboundary reserve located on the border between Guinea, and Liberia, Cote d'Ivoire. Mount Nimba was designated as a biosphere reserve and World Heritage Site in 1981. Mount Nimba is part of the ‘Guinean family rising 1,752 meters above sea level and part of a vast watershed with a great topographical diversity. The reserve was established in 1944, by decree in Guinea. The Mount Nimba range is in the far southeast of Guinea, on the border with Côte d'Ivoire and Liberia east of N'zérékoré in Guinea.
The Polar Biome The polar ice biome actually consists two biomes, both on opposite ends of the world; the north and south poles. These biomes are defined as being high and low-altitude areas where the energy from the sun is weak enough for water to freeze and create pack ice (North Pole) and ice sheets (South Pole). The polar ice caps are very similar to the arctic tundra in that many of the same organisms can be found in both the tundra and the ice caps. While it may not seem like there is much to the ice caps, there is actually an abundance of wildlife living both on the ice and below it in the water. Polar ice regions are the regions at the far north and south of the globe.
“We cause global warming by increasing the greenhouse effect, and our greenhouse gas emissions just keep accelerating,” (John Cook “Quantifying the Consensus on Anthropogenic Global Warming in the Scientific Literature,”) Most scientists agree that planet’s temperature has risen 0.5 degree Celsius since 1900 and will continue to increase at an increasing rate. (Weeks, Jennifer. "Climate Change.") As a result, the world is getting warmer. Rising global temperatures will speed the melting of glaciers and ice caps and cause early ice thaw on rivers and lakes.
The Andes Mountains also consist of fauna, being that the Andes is a habitat for numerous species. Another interesting fact about the Andes Mountains is that it is home to an anthropological discovery of the legendary Plomo Children, which is exhibited in the Museum of National History of Chile. Andes Mountains Location of the landform and Characteristics of the landform The Andes Mountains are located in South America, running north to south along the western coast of the continent. The latitude is 10° N. to 57° S. The longitude is 70° W. to 80° E. The Andes Mountains are the longest and one of the highest mountain ranges in the world. They are located in South America and stretch 4,500 miles from north to south, along the west coast of the continent.
2004- What do you know about Oceanic depositions? Discuss in detail. 2003- What is glaciation? Describe the land forms associated with glaciation in the highland areas. 2002- Describe the conditions essential for the development of Karst Topography, List the principal features of Karst region.