UCLA EPSS 61 Final Questions And Answers Rated A+ New Update Assured Satisfaction

Define Geologic Map - A record of the locations, orientations, and relationships between bodies of rock and geologic structures. List the three things that all maps must convey - 1: The Location of the map 2: The Orientation of the map 3: The Scale of the map Explain how latitude and longitude define a point on Earth's surface - Any point on Earth can be defined by the intersection of its lines of latitude and longitude. Latitude is the flat horizontal lines (flatitude) and longitude are the vertical lines (launchitude launch to the sky). Use the internet to look up the latitude and longitude of a given location - easy peasy Explain the difference between geographic and magnetic north - Geographic north which is also called true north is the direction towards the fixed point we know as the north pole. magnetic north is the wandering point where the Earth's magnetic field goes vertically down into the planet. Use the internet to look up the declination (and rate of change) at a given location - The deviation of the compass from true north is an angle called the declination (or magnetic declination). Since the magnetic north point wanders over time, the declination also changes over time, hence the rate of change. if you type in "magnetic declination los angeles" it'll pop up as 13 degrees east Define "scale" (in the context of a map) - Map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. Use the scale (either numeric or graphic) of a map to determine what distance a given length on a map represents in real life, and vice-versa - A numeric scale Indicates how many times smaller the representation is compared to the actual sruface represented: 1:10 1:1001:1000 A graphic scale allows you to calculate the equivalent number of kilometers or meters in real life. -knowing this difference should help when looking at a real map Define topographic contours - Topography, or the shape of the Earth's surface, is mapped and displayed on topographical maps. Contour lines, or lines which connect points of equal elevation, are drawn on a topographical map in order to quantify the elevation at any point on the map. Relate patterns of topographic contours on a map to 3-D topographic features in the real world, and vice versa. - pretty self explanatory List, and apply, the rules of topographic contours. - Can a topographic contour line terminate? -no Can two topographic contour lines merge/can one contour line split? no Can two topographic contour lines cross? no Can a topographic contour line ever be skipped? (e.g., can a "20" contour line be adjacent to a "40" line, without a "30" line in between?) no unless the map is going by intervals of 20 Do the points of the "V"s in topographic contour lines along a stream/canyon point upstream or downstream? upstream Do more closely spaced topographic contour lines represent steeper topography, or shallower topography? steeper Define and draft (by hand) a topographic profile from a topographic map. - you got thisExplain vertical exaggeration - a scale that is used in raised-relief maps, plans and technical drawings (cross section perspectives), in order to emphasize verticalfeatures, which might be too small to identify relative to the horizontal scale. -so this is when you mark a straight line across a map and then you get the graph that shows the different elevations across the distance of that straight line -bad for showing geology because it could squish the different geologic features if it's overly exaggerated