a east-west line that extends through the initial point and provide the basis of the grid

a north-south line that extends through the initial point and provide the basis of the grid

horizontal lines at six-mile intervals that parallel the base line establish east-west tracts

vertical lines at six-mile intervals that parallel the principle meridian define north-south tracts

congressional township

the intersection of a township and a range defines six-mile-by-six-mile rectangle. this may or may not con

half way between the north pole and south pole

what the first rule of contour lines

connects points of equal elevation

what is the third rule of contour lines

steep slopes are shown by closely spaced contours

what is the fourth rule of contour lines

contour lines never cross, except to show an overhanging cliff.

what is the fifth rule of contour lines

hills are represented by a concentric series of closed contour lines

what is the sixth rule of contour lines

a concentric series of closed contours with hachure marks on the downhill side represents a closed depression

what is the seventh rule of contour lines

when contour lines cross systems or dry stream channels, they form a V that points upstream.

what is the eighth rule of contour lines

contour lines that occur on opposite sides of a valley always occur in pairs

what is the ninth rule of contour lines

topographic maps published by the u.s. geological survey are contoured in feet or meters referenced to sea level.

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E&A Lab Exam #1

Question	Answer
base line	a east-west line that extends through the initial point and provide the basis of the grid
where is the base line in Arkansas	little rock
principle meridian	a north-south line that extends through the initial point and provide the basis of the grid
townships	horizontal lines at six-mile intervals that parallel the base line establish east-west tracts
ranges	vertical lines at six-mile intervals that parallel the principle meridian define north-south tracts
congressional township	the intersection of a township and a range defines six-mile-by-six-mile rectangle. this may or may not con
equator	half way between the north pole and south pole
smallest quarter of a quarter is how many acres	40 acres
quarter of a section is how may acres	160 acres
a section is how many acres	640 acres
how many degrees are between the north and south poles	180 degrees
what the first rule of contour lines	connects points of equal elevation
what is the second rule of contour lines	never branches or splits
what is the third rule of contour lines	steep slopes are shown by closely spaced contours
what is the fourth rule of contour lines	contour lines never cross, except to show an overhanging cliff.
what is the fifth rule of contour lines	hills are represented by a concentric series of closed contour lines
what is the sixth rule of contour lines	a concentric series of closed contours with hachure marks on the downhill side represents a closed depression
what is the seventh rule of contour lines	when contour lines cross systems or dry stream channels, they form a V that points upstream.
what is the eighth rule of contour lines	contour lines that occur on opposite sides of a valley always occur in pairs
what is the ninth rule of contour lines	topographic maps published by the u.s. geological survey are contoured in feet or meters referenced to sea level.
how do you calculate relief	^E=E1-E2
how do you calculate slope	relief/distance

Created by: josey edwards 11

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