Answer:
(B) a descending convection current in the Earth's mantle
Explanation:
The connection between the sea floor and ocean produces a conventional current due to its waves
Answer:
To pump water up from the well or borehole.
Explanation:
The simplest way to exploit groundwater is to wait till it comes to the surface as a spring, and capture water at this point. ... To raise groundwater to the surface we need to pump the water up from the well or borehole.
The historical event in the medieval period that led to European interest in trade with the Middle East was the European Crusades. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has come to your help.
The body of water that the city of Los Angeles is located on is called the Los Angeles River. It now flows through a concrete channel on a fixed course, since it has been redrawn after many chaotic floods. The river is rarely used however for fresh water for the city, as it is now very polluted and has urban discharge in it's water, so the aqueducts in the city are now used for the fresh water mainly utilized in Los Angeles.
