Explain how wind shear is instrumental in causing tornadoes
What will be an ideal response?
Answer: Usually in the United States, low-level winds during tornadic days come from the southerly quadrant. Upper winds are much stronger and come from the southwest. So, this effect is wind shear in the horizontal and vertical directions. Wind shear causes a near surface tumbling of wind on a horizontal axis. As a thunderstorm grows, this tumbling translates to the vertical axis and becomes a spin that is the mesocyclone dropping a tornado.
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Which of these numbers is near a site with active seafloor spreading?
A. 1 B. 2 C. 3 D. 4 E. None of these choices are correct.
Three trillion dollars — $3,000,000,000,000 — represents
A) the economic cost of the Iraq and Afghanistan Wars. B) the amount spent supporting human and children's rights in the world's periphery. C) the cost to the USA of attaining the number one ranking in the Global Peace Index. D) the amount lost to government corruption around the world every year..
Which of the following statements describes what would happen if the amount of energy lost each year by the Earth to space were not approximately equal to that received?
A. The sun's output would change. B. The length of the year would change. C. The atmosphere's average temperature would change. D. The mass of the atmosphere would change.
How is it possible for an element to decay "forward in the periodic table"—that is, to decay to an element of higher atomic number?
A) when the decay is instigated by a collision with a proton B) as a beta particle is released, a neutron transforms into a proton C) This only occurs during nuclear fusion. D) It is not possible. Radioactive decay always results in an isotope with the same or lower atomic number.