The Berlin Wall separated families and kept people from opportunity in the south
It was used to recognise the value of people (High and Low) and gave opportunities and respect to the high class people and not to the low class. Anyways, this was not a good idea as it discriminated people. In present India, caste system is not used as it causes Inequality.
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Answer:
Rivers change the surface of the earth. They are the agents of erosion, deposition and transportation. When rivers flow, they erode the rock with them and strong current pushes them. ... After cutting, they carry the stone, pebbles and other solid things and when the current is slow, they deposit the load on the land.
The total number of ways to select two vehicles is <u>C(12, 2).</u>
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<h3><u>What is a combination?</u></h3>
A combination is a choice made in mathematics from a group of different elements when the order of the choices is irrelevant (unlike permutations).
For instance, if three fruits, such as an apple, an orange, and a pear, are supplied, there are three possible pairings of the two: an apple and a pear; an apple and an orange; or a pear and an orange. Formally speaking, a k-combination of a set S is a subset of S's k unique components. In other words, two combinations are the same if and only if they have the same members.
Learn more about the combination with the help of the given link:
brainly.com/question/13387529
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