Answer: A low pressure system has lower pressure at its center than the areas around it. ... Because of Earth's spin and the Coriolis Effect, winds of a low pressure system swirl counterclockwise north of the equator and clockwise south of the equator. This is called cyclonic flow
It depends on what you're asking. If angle a and b are both on a straight line, b would equal 169 degrees because the total has to add up to 180 degrees, but if they are on a right angle, b would equal 79 because it has to add up to 90 degrees.
It isn't exactly known who discovered it first, but the earliest claim of earth being round rather than flat was posed by Pythagoras sometime around 500 B.C. He argued that if the moon was round the Earth should be as well.
After that, his claim was proven true by a man named Anaxagoras at around 500-430 B.C when he brought up solar and lunar eclipses. The shape of Earth's shadow on the moon was also used as evidence that the Earth was round.
And finally, in 350 B.C the great Aristotle declared that the Earth was a sphere based on constellations you can see if you travel farther from the equator. Over the next hundred or so years, Aristarchus and Eratosthenes actually measured the size of the earth.
Short answer: The Greeks
The jazz singer film released in 1927 was the first successful talking motion picture. The correct option is C. The Jazz Singer was the first feature-length film with synchronized dialogue when it was released in 1927.
<h3>When did movies sound to 1927?</h3>
The Warner Bros. film "The Jazz Singer," starring Al Jolson, was the first commercial feature film to use actual synchronized dialogue. "The Jazz Singer" was released on October 6, 1927, and it included both silent and sound sequences.
The Jazz Singer, which debuted on October 6, 1927, was the first feature film to be presented as a talkie. It was a big hit, and it was made with Vitaphone, the leading brand of sound-on-disc technology at the time.
Thus, the ideal selection is option C.
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The correct answer is letter D. an economy based on trade. The people who migrated to Melanesia developed <span>an economy based on trade. Before the time of currency was used, people back then do trading with their property they own if they want to have something. It's like the same as the barter system or the barter economy.</span>
