The convection currents are formed due to heating of molecules.
When the liquid molecules are heated, the liquid becomes larger in size and lighter in weight. The heated molecules take up more space and rise to the top, while the cooler molecules comes to the bottom and takes the place. This cycle is known as the convection current.
Convection currents are the result of differential heating. Lighter which is less dense and warm material goes upward while on the other hand, heavier which is more dense and cool material sinks. This movement creates circulation patterns known as convection currents in the atmosphere.
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Answer:
The correct answer is - 20.
Explanation:
According to the triangle inequality theorem states that the largest and smallest value of the third side of the triangle can be found with the other two sides. The lowest value would be more than the difference of the other two sides and the largest value would be less than the sum of the other two sides of the triangle.
In this case, the other two sides are - 9 and 12
suppose the third side is - x
Then according to the triangle inequality theorem, the largest value of x would be:
x< 12+9
x< 21
so the x would be less than the 21 which is - 20.
Answer:
is a pattern of data that shows greater increase with passing time.
