Answer:
Borders are imaginary lines that divide a nation, state, province or city from others. These dividing lines can be taken from geographic features, such as rivers, seas, lakes, mountains, etc .; or in geometric form, using lines as meridians and parallels; or for ethnic reasons, dividing populations based on languages, ethnic origin, etc.
Examples of each of these types of border are:
-Natural border between Argentina and Chile along the Andes Mountains, taking as the dividing line the highest point of the same.
-Geometric border between America and Canada on the west coast, taking the line of parallel 49 as division.
-Ethnic border between Pakistan and India, dividing both nations according to concepts of Islamic or Hindu religious affiliation.
Since M is the midpoint of the segment AB
then measure of AM and MB are equal. So to solve the value of x, equate the following
measurement
AM = MB
50 – 3x = -20 + 4x
70 = 7x
<span>X = 10</span>
The correct answer is - lagoon.
When rivers and streams that have lower water volume throughout the whole year come in touch with the ocean, under the influence of the ocean's wave and ocean currents along the coast, sandbars and barrier islands start to form around the estuary. As they form and little by little grow in size, they manage to create a closed space with calm shallow water between the estuary itself and the ocean, thus creating a lagoon.
