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Q: What are the main reference lines?
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What are the different reference lines used in locating places on earth?

The two main reference lines used in locating places on Earth are the Equator, which divides the Earth into the Northern and Southern Hemispheres, and the Prime Meridian, which divides the Earth into the Eastern and Western Hemispheres. Additionally, lines of latitude (parallels) and longitude (meridians) help pinpoint specific locations on the Earth's surface.


Why are some lines of reference required to locate places on earth?

To find out exact location of the certain place in the earth, it needs some lines of reference i.e. latitudes & longitudes.


Definition of horizon lines in reference to perspective drawing?

The point at which horizon lines receding from an observer seem to converge.


On the lines below, write the main idea of this selection?

on the lines below write the main idea of the section


What reference lines are used to locate points on earth?

Latitude and Longitude


Where were the main lines?

underground


What is a reference angle?

A main angle of refrence.


What are the factors effecting contour intervals?

If the contour interval is not given, find two reference (labeled) contour lines and find the number of lines between them, excluding the reference lines themselves. Then the interval can be found using the following formula: |(Difference between elevation of reference lines)| /(Number of contour lines between reference lines +1) = Contour interval For example, if you find two reference lines labeled 150m and 250m and there is one contour line between them, then |150m-250m|/(1+1)=100m/2=50m The contour interval of that map is 50 meters.


What two lines are baselines for measurement on earth surface?

The Equator is the zero reference for latitude.The Prime Meridian is the zero reference for longitude.


What are the advantage and disadvantage of the three main map projections?

are lines


Who are the main characters in Invisible Lines by Mary Amato?

Trevor Musgrove is the main character in Mary Amato's Invisible Lines.


Why are reference lines important?

they tell you where the equator, prim meridian and etc are located