What kinds of vegetation grow well in the climate and soils of the south? a. mangroves c. cotton b. thick forests d. all of the above

The vegetation that grows well in the climate and soils of southern USA includes mangroves, cotton, and thick forests.

Explanation:

Florida is the southernmost state of the mainland USA  and is famous for the Florida Mangroves that grow along its southern coast. Moreover, the entire southern half of the United States produces cotton which makes the United States one of the major cotton producers in the world. There is also a vast cover of thick forests in the southern part of the United States which is home to a number of national parks.

One vorticity unit equals 0.00001 s-1 or 1 * 10 ^ -5 s ^ -1

Explanation:

The change in wind speed is 30-20 = 10 knots = 5 m / s

The change is the distance is 1,600 m.

The change in wind speed over distance = 5 / 1,600 s ^ -1 = 0.003125 s ^ -1

The above calculation is multiplied by 1000 to simplify the number. This will give a speed cutoff value of approximately 3 units. The following is an operational interpretation of the cutting speed.

0 to 3 weak, 4 to 5 moderate, 6 to 7 large, 8+ extreme

The shear vorticity is found similarly and has the same units. The shear vorticity is determined on a vertical axis. Here is an example problem:

At location A at 500 mb the wind speed is 30 knots, at location B at 500 mb the wind speed is 50 knots. The distance between the two places is 400 km. How many shear vorticity units occur between the two locations?

The change in wind speed is 50-30 = 20 knots = 10 m / s

The change in distance is 400,000 m.

The change is the wind speed over the distance = 10 / 400,000 = 0.000025 s ^ -1

One vorticity unit equals 0.00001 s-1 or 1 * 10 ^ -5 s ^ -1

This produces a shear vorticity value of 2.5 units.