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Stone,grass.soil are used to build barriers along counters.trenches are mabe in front of the barrier to collect water.

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What is every fifth contour line?

it is a contour line of elevation Control index contour, or just index contour


What is an example of contour plowing?

Contour plowing is a farming technique where fields are plowed along the natural contours of the land, rather than in a straight line up and down slopes. This helps to prevent soil erosion by reducing water runoff, as the rows act as barriers to slow water flow and trap sediment. An example of contour plowing would be plowing in a series of concentric circles around a hillside.


What is contour farming?

Contour farming is a method of farming where crops are planted across the slope of the land to reduce soil erosion. The rows of crops act as barriers that slow down the flow of water, preventing it from washing away the soil. This technique helps to conserve soil and water resources in hilly or sloping terrain.


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What are the difference's between contour interval and index contour?

A contour interval is the vertical distance between contour lines on a topographic map, representing the change in elevation. An index contour is a heavier contour line that is labeled with the elevation value, to help users quickly identify key elevations on the map.


Which has a heavier visual weight and object with a simple contour or with a complicated contour?

A complicated contour is heavier.


What is the difference between and index contour and a regular contour line?

An index contour is a thicker contour line that is labeled with the elevation of that contour. It usually appears every fifth contour line and helps to quickly identify elevation changes on a topographic map. Regular contour lines are thinner and connect points of equal elevation.


What is a darker contour line usually every fifth line?

It makes it easier to count the number of contour lines.


What is the difference in elevation between two contour lines that are side by side?

The difference in elevation between two contour lines that are side by side is the contour interval. The contour interval is the vertical distance between two adjacent contour lines on a topographic map.


What is the difference between a contour interval and an index contour?

A contour interval is the vertical distance between two contour lines on a map, representing the change in elevation. An index contour is a thicker contour line labeled with the elevation of the line above sea level, typically every fifth contour line. It helps users quickly identify elevation values on a map.