Answer:Geographic featured that acted as norther borders of the Roman Empire at its height were: Rhine River, Danube River, Carpathian Mountains, and the Black Sea.
My preferred way to divide complex numbers is to multiply numerator and denominator by the complex conjugate of the denominator
Answer:
It is formed on earths surface because igneous rock is formed by volcanoes and volcanoes are on land
Explanation:
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The answer is: B. Subtract the death rate from the birthrate.
The rate of natural increase is given as a percentage, calculated by dividing the natural increase by 10.
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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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