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Danielle :)

on 14 January 2013

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Transcript of GEOGRAPHY

Themes of
Geography j Place and location Environment The atmosphere is 1 of 4 components of the environment. All life depends on the atmosphere for survival, it shields us from the direct rays of the sun, it supplies water for the land(the water cycle) and the carbon dioxide, plants need to grow come from the atmosphere. High up in the stratosphere is a layer called the ozone layer, it protects us from harmful UV rays that can cause skin cancer. Movement Interaction Humans are a huge part of many food chains, and as our population increases so does the strain on our natural resources. Our need for food has caused many animals to go extinct and has made a variety of species endangered, such as the black-footed ferret. Relative location of Earth: Earth is the third planet away from the Sun, it is in between Venus and Mars(we live on the Earth).
Absolute Location of the Earth: The Earth is in the Milky way galaxy 150 million km away from the Sun Region This polar desert receives less than 25cm of rain per year. Even though its not warm we still consider it a desert region. The village depicted here is a rural region. A rural region is 1 of 3 main regions based on human population. Rural regions usually have lots of open space and farmland This is a wilderness region, uninhabited by any humans but home to a variety of plants and animals. Urban regions are regions in which there are massive human populations. Towns and cities are examples of urban regions. The terrain in this land form region differs from that of a mountain or plain region due to the formation of the rocks and the main surface features it has. Hundreds of people are driving to a destination on 4 wheelers. When the Earth's tectonic plates move they often cause natural disasters such as earthquakes, tsunamis and volcanoes erupting all of which which affect humans greatly. Due to the movement and rotation of the Earth when half the world is experiencing day the other half is experiencing night. The time is also different in other countries because of this. By establishing a trade basis with another country goods are imported, exported and transported to places all over the world. The movement of goods can be carried out on planes, trucks and boats. The movement of ideas and information is passed to us with the use of technology Caribou migrate across wide areas in the Arctic tundra. If companies and governments want to extract resources or build communities there, they study and take into account the migration pattern of the herd. Beluga whales are now threatened with birth defects and disease because they have ingested so many harmful chemicals that we have dumped into the oceans. Because of the high level of contamination, beluga whale carcasses are treated as toxic waste. As our population grows so does our need for food which puts a strain on our natural resources. One example is overfishing, we have less than half the fish population we had 20 years ago and it is estimated that by 2050 there will be no more fish in the oceans. The lithosphere is the Earth's crust; it is a layer about 5 km to about 50 km thick sitting on top of the Earth's mantle.The lithosphere provides us with metals, oil and natural gas. Farmers use the top layer of soil to plant crops, and we quarry gravel, sand and rock to make houses and other structures. The biosphere includes the lower levels of the atmosphere, the first few meters of the lithosphere and all of the hydrosphere. The biosphere is also known as the life zone, millions of species, including humans, exist here. The hydrosphere includes all the water on the surface of the Earth: oceans, lakes, rivers and the polar ice caps. The Earth is about 70% water and only 30% land. We use water for all of our domestic purposes. The key to all life on earth is the sun, It provides us with warmth and light. Plants take in carbon dioxide and water and using solar energy, through the process of photosynthesis, they make them into a kind of sugar they use as food. During photosynthesis they make oxygen which most living things need to survive Hurricanes, tornado s, landslides, sandstorms and volcanoes also affect us greatly. As the population density increases, natural disasters are becoming an increasing threat to life and property. PLACE AND LOCATION Place is relative because it does not give a specific address, location is absolute because it tells you exactly where it is. This is a nature park. it is defined as being a place because we do not know the exactly where it is. Stonehenge is located approximately 51.1789° N, 1.8264° W. This is an absolute location because when trying to find it on a map if you look for the coordinates it will be there. This is a place because, again, we do not know the exact location. This is the Harbour bridge located in Sydney, Australia. The bridge is built over Sydney Harbour starting at Milsons Point in the Lower North Shore right across to Millers Point in the Rocks Area. REGION An area having definable characteristics but not always fixed boundaries MOVEMENT Movement refers to the way people, products, information and ideas move from one place to another. ENVIRONMENT Environment in geography refers to the components of the environment(atmosphere, hydrosphere, lithosphere and biosphere) and how humans use them. INTERACTION Interaction refers to how humans affect the environment and how the environment affects us.
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