Ans:<span> Option (C) Transported groundwater from a distance
</span>
Karez water system is in Turpan, the prefecture-level city located in China. It consists of wells that are vertically dug and are lined up horizontally. There are various canals that are connected and linked to these wells. The main purpose is<span> to collect water from the </span>watershed surface that is at<span> the base of the </span>Tian Shan Mountains.
Answer:
PERMAFROST LAYER
Explanation:
Permafrost layer is usually defined as the thick layer of soil that is mixed with the broken rock fragments and other sediments, and are covered by ice throughout the year. These are mostly found in the higher latitudinal region, where the thickness of these layers ranges from a few meters to tens and hundreds of meters. The melting of these layers in these regions leads to an increase in the sea level.
For example, the permafrost layers of tundra and subarctic zones in Russia and its nearby areas, which have a thickness of about three meters.
In my opinion, the correct answer among the choices listed above is option D. Hydrogenous sediment is made up of minerals that crystallize directly from ocean waters. They are produced when minerals reacts chemically with seawater.