According to the monitoring, a weather system (tropical storm) was located at R in the following figure at 8: 00 Beijing time on February 20th. The wind direction of an observation station changes to

According to the monitoring, a weather system (tropical storm) was located at R in the following figure at 8: 00 Beijing time on February 20th. The wind direction of an observation station changes to the east within 48 hours.

Question 1:A?

Question 2:C

Test analysis:

Question 1: Judging from the latitude and longitude, the illustrated area is the southern hemisphere, southern Africa, and tropical storm R is located in mozambique channel. Tropical storm is a strong tropical cyclone, and cyclones in the southern hemisphere converge clockwise, so northwest wind blows to the north, northeast wind blows to the east, southeast wind blows to the south, and southwest wind blows to the west. An observation station is located in the south of R in the southeast wind, in the east of R in the northeast wind, and in the north of R in the northwest wind. Therefore, relative to the observation station, R's moving path first turns to the southwest and then turns to the southeast. A right. B, c and d are all wrong.

Question 2: Based on the analysis of the above problems, the illustrated area is southern Africa, in which A is located on the west coast of the low latitude continent and B is located on the east coast of the low latitude continent. So the sea area A is a cold current, and the sea area B is a warm current. A is wrong. The current in sea area B doesn't change with the seasons, but it is a warm current in the counterclockwise direction. B is wrong. A sea area is a cold current, because of upwelling, a large fishing ground has been formed, and the seawater in C sea area flows southward. If seawater is polluted, ocean currents will spread pollutants to the south. D is wrong.