Topographic maps use contour lines to show elevation.
Topographic maps, often called "topo maps," feature contour lines to portray the shape and elevation of the land.
Contour lines (lines of equal elevation) that are close together indicate steep terrain, while lines that are far apart indicate flat terrain.
Such maps also usually portray both natural and artificial features. They show and name natural land formations such as mountains, valleys, plains, lakes, rivers and vegetation. They also identify particular man made features such as roads, boundaries, transmission lines and major buildings.
Answer:
no answer about that have you
3
Green manure.
Farmyard manure.
Compost manure.
Answer:
y=4x-16
Explanation:
The general form of the equation of a line is: y=mx+x, where m is the gradient and c is the y-intercept.
Given points (-3,-3) and (-1,5)
We are to find the equation of the line parallel to the given line with an x-intercept of 4.
First, we determine the value of the gradient of the line.
Gradient,

Two lines are parallel if their gradients
are equal.
The gradient of the line parallel to the given line 
Since the x-intercept of the new line is 4, a point on the new line, 
Substituting
into the equation of a line: ,
we have:

Therefore, the equation of the line is: y=4x-16