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Geo Re Hard
Hard
| Question | Answer |
|---|---|
| How old is the earth? | 4.6 billion years old. |
| Pangea | It is a supercontinent, which includes all of the earth's masses. It exisited from 200 |
| Meltwater | It is water resulting from the melting of glacier ice and snow. |
| Topography | Natural and features of a landscape. |
| What is the largest and most easternmost vegetation reigon? | Boreal and Taiga |
| What is the smallest and most southernmost vegetation reigon? | Decidious |
| What is the wettest and westernmost vegetation reigon? | West Coast |
| What is the coldest and northernmost vegetation reigon? | Tundra |
| Glaciation | It is the state of being covered by glaciers or massive ice sheets. |
| Glaciers | It is a slow moving mass of ice. |
| Convection Current | It is circular movement in a gas or liquid created by uneven heating in the mantle. |
| Ridge | It is formed when two plates move apart and the heat comes up. |
| Trench | It is formed when two plates collide and one subucts under another. |
| Subducting | It is when one plate slides under another. |
| Land Formations | It is a natural feature on the Earth's surface and there are three types of them. |
| Highlands | It is an area of high elevation containing mountains and plateaus. |
| Plateaus | It is the elevated flat area between highlands. |
| Lowlands | It is an area of low elevation containing plains and hills. |
| Canadian Shield | It is a large area of Precambrian rock that forms the core of Canada. |
| Erosion | It is the wearing away of the Earth's surface followed by the movement to other locations. |
| Weathering | It is the breakdown of rock into small particles. |
| Escarpment | It is a steep cliff formed by erosion or faulting. |
| Sediments | Eroded material, for example sand and gravel that is deposited by wind, water or ice. (WWI) |
| How are earthquakes and volcanoes formed? | They are caused by the movement of the Earth's plates. |
| Air Mass | It is a large body of air, having the same moisture and temperature conditions throughout. |
| Prevailing Winds | They are winds that are most commonly found in an area, for example, over most of Canada's wind is westerlies. |
| Polar Front | It is a stormy boundary between cold and dry polar air and warm moist tropical air. |
| Jet Stream | It is a west to east movement of air in the mid |
| North Pacific Current | It affects the west coast and changes the temperature. |
| Cold Labradour Current | It causes fog conditions and also causes icebergs to melt (Ice Berg Alley). |
| Jet Stream Current | It brings warmer currents over Canada. |
| Condensation | Water vapour is cooled, and changes from an invisible gas to liquid water. The vapour form of this forms clouds. |