To qualify formally as a hurricane, a tropical cyclone must have winds of at least 250 kilometers (155 miles) per hour
Indicate whether the statement is true or false
false
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Which of the following is an important factor in determining whether or not a certain small-scale wind phenomenon will occur?
A) topography B) pressure gradient force C) season D) all of the above E) none of the above
The properties of air masses change little, even if they travel thousands of kilometers
Indicate whether the statement is true or false
In order for limestone to collapse to form a major sinkhole, the ground above must be ____
a. ?thin and porous so that rainwater passes through easily b. ?small-grained so the soils can percolate through fissures c. ?thick and rich in cohesive clay to allow a cavern to form d. ?high in peat, allowing decomposition in the presence of oxygen e. ?acidic, to speed the dissolution process
Systems theory involves defining the system, breaking the system down into its component variables, and examining how the variables are related to one another
Indicate whether the statement is true or false