Q: What is said about the speed of rotation in systems that create tornadoes?


Read this paragraph and choose the correct option from the provided answers:

There are several other examples of objects that increase their rate of spin because something reduced their moment of inertia. Tornadoes are one example. Storm systems that create tornadoes are slowly rotating. When the radius of rotation narrows, even in a local region, angular velocity increases, sometimes to the furious level of a tornado. Earth is another example. Our planet was born from a huge cloud of gas and dust, the rotation of which came from turbulence in an even larger cloud. Gravitational forces caused the cloud to contract, and the rotation rate increased as a result. (See Figure 10.24.

 Choices:

- it is magnetic

- it is unchanged

- it is fast

- it is slow


A:
it is slow