Describe the five major stages of a major tornado’s life cycle.?
What will be the ideal response?
ANSWER: The first stage is the dust-whirl stage, where dust swirling upward from the surface marks the tornado’s circulation on the ground and a short funnel often extends downward from the thunderstorm’s base. Damage during this stage is normally light. The next stage, called the organizing stage, finds the tornado increasing in intensity with an overall downward extent of the funnel. During the tornado’s mature stage, damage normally is most severe as the funnel reaches its greatest width and is almost vertical. The shrinking stage is characterized by an overall decrease in the funnel’s width, an increase in the funnel’s tilt, and a narrowing of the damage swath at the surface, although the tornado may still be capable of intense and sometimes violent damage. The final stage, called the decay stage, usually finds the tornado stretched into the shape of a rope. Normally, the tornado becomes greatly contorted before it finally dissipates.?
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Which of the following describes the vertical structure of a hurricane?
A. There is an upper-level inflow of air and a surface outflow of air. B. There is an upper-level inflow of air and a surface inflow of air. C. There is an upper-level outflow of air and a surface inflow of air. D. There is an upper-level outflow of air and a surface outflow of air.
The statement that certain meteorites resemble the composition of the early mantle is
A) a hypothesis. B) an assumption. C) a theory. D) an observation.
Which of the following best describes how geysers erupt?
A) Water below the water table slowly boils in a vertical crack or natural conduit, causing a plume of condensed water vapor to rise above the vent. B) Water slowly boils in a network of vertical cracks above the water table, sending up a plume of steam and hot water. C) Water suddenly boils in disconnected voids and cracks above the water table, causing the aquifer to explosively fragment. D) With a slight reduction in pressure, water in a saturated, natural conduit suddenly boils, sending a plume of steam and hot water into the air above the vent.
An island arc comprising of volcanic islands forms as a result of ocean-ocean convergence.
Answer the following statement true (T) or false (F)