FIRST CONTACTS 28000 BCE 1821 CE
NATIVE AMERICANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dams
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Bridges
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Tunnels
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Fountains
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Detailed explanation-1: -A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.
Detailed explanation-2: -This is so that when the monsoon rains come, there is space to store the excess rainwater and also so that water can be released in a regulated manner, thus preventing floods downstream when there is heavy inflow to the dams.
Detailed explanation-3: -The rapid response water-gate in the US A device known as the water-gate can be a useful alternative. This is a rapidly deployable device made of a PVC material. It utilizes the pressure of oncoming water to stabilize itself. This essentially means that the floodwaters are used to build their own dam.
Detailed explanation-4: -Inundation canals and weirs: Flood water can also be managed by making diversions through inundation canals, small irrigation structures, and with weirs that take away excess water to the agricultural fields.