Correct Answer: ​(A) and (D) only. Key Points Westerlies are prevailing winds that blow from the west at midlatitudes. They are fed by polar easterlies and winds from the high-pressure horse latitudes, which sandwich them on either side. “Furious Fifties” lie in a circumpolar storm track and a westerly oceanic current zone commonly called the West Wind Drift, or Circumpolar Current. Warm, subtropical surface currents in the Atlantic, Pacific, and Indian oceans move southward in the western parts of these waters and then turn eastward upon meeting the Circumpolar Current, Furious Fifties winds are associated with Westerly winds. The area of the earth is between 50 and 60 degrees south, prone to strong winds. Rossby waves are huge, undulating movements of the ocean that stretch horizontally across the planet for hundreds of kilometers in a westward direction. Atmospheric Rossby waves result from the conservation of potential vorticity and are influenced by the Coriolis effect and pressure gradient. The rotation causes fluids to turn to the right as they move in the northern hemisphere and to the left in the southern hemisphere. Rossby waves, also known as planetary waves, naturally occur in rotating fluids. Within the Earth's ocean and atmosphere, these waves form as a result of the rotation of the planet, and Rossby waves are associated with Westerly winds. Additional Information Boyle’s law: Boyle’s law is a gas law that states that the pressure exerted by a gas (of a given mass, kept at a constant temperature) is inversely proportional to the volume occupied by it. In other words, the pressure and volume of a gas are inversely proportional to each other as long as the temperature and the quantity of gas are kept constant. Boyle’s law was put forward by the Anglo-Irish chemist Robert Boyle in the year 1662. Laws that relate to the pressure, volume, and temperature of a gas. Boyle's law—named for Robert Boyle—states that, at a constant temperature, the pressure P of a gas varies inversely with its volume V, or PV = k, where k is a constant. Walker circulation: The Walker circulation is the result of a difference in surface pressure and temperature over the western and eastern tropical Pacific Oceans. A pressure gradient from east to the west creates an air circulation from the Eastern pacific i.e. along the coast of Peru-Chile to the western Pacific(Australia-New Guinea) and The Walker circulation causes an upwelling of cold deep seawater, thus cooling the sea surface.