How can scientists determine wind speed

A: Wind is caused by an air pressure change.  You can measure the velocity of the wind using a device called an anemometer. An anemometer looks like a weather vane but instead of measuring the way the wind blows with points, it has four cups so it can measure wind speed more accurately.

-SТОЯМ

for the points : )

explanation:

the results of roman expansion produced social conflict and civil war. julius caesar gained power and became a dictator but was then assassinated. the reign of augustus began a long period of imperial rule and peace in the roman empire. rome faced the problems of how to maintain peace, law, and order.

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