True/False. If false, explain why it is false. 1. (1 pt) True False: The Corioli

Question

True/False. If false, explain why it is false. 1. (1 pt) True False: The Coriolis force causes a flushing toilet to spin counterclockwise in the northern hemisphere 2. (1 pt) True False: Rossby waves are large-scale horizontal waves in the jet stream. 3. (1 pt) True False: Baroclinic instability is the term given to the unstable growth of 4.(1 pt) True / False: The polar front is a north-south feature separating warm air to 5. (1 pt) True False: The growth of an extratropical cyclone via baroclinic instability waves on the jet stream, which ultimately produce extratropical cyclones the east from warm air to the west requires a cyclone that tilts westward with increasing height above the surface

Explanation / Answer

1. True.

Coriolis forces refer to deflection of winds counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. So, a flushing toilet spins in the counterclockwise direction in the Northern Hemisphere. This deflection is known as the Coriolis Effect.

2. True.

Rossby waves ae caused due to rotation of the planets and so, they are known as Planetary Waves. They are intricately associated with rotating fluids. Thus, in the Earth, they are closely associated with Jet streams which are rotating fluids. Rossby waves are horizontal sets in the Jet streams.

3. True.

The word 'Baroclinic' has its origin in the two words- 'Baro' meaning pressure and 'Cline' meaning stability. Thus, baroclinimc stability refers to the instability rising due to pressure conditions. This instability gives rise to large-scale circulations in the oceans. Jet strams arise due to this oceanic circulations. Jet streams are influential in the mid-latitudes of the Earth and they produce extratropical cyclones.

4. False.

The polar front does not separates warm air to the east from warm air to the west. It is operational at Latitude 60 degrees North and South. It is a boundary between the polar cell and the Ferrel cell and not the East and West. It separates warm air and cold air.

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