Figure 1 ~ Figure 3 is the schematic diagram of ocean current distribution in some sea areas. Look at the picture and complete questions 4 ~ 5. The impact of ocean currents on the geographical environ

Figure 1 ~ Figure 3 is the schematic diagram of ocean current distribution in some sea areas. Look at the picture and complete questions 4 ~ 5. The impact of ocean currents on the geographical environment is () A. ① Ocean currents flow northward. A. There is a large area of land near 50 degrees in the picture, and it is judged that 50 degrees should be in the middle and high latitudes of the northern hemisphere, so ① the ocean current is the cold current on the east coast of the mainland (west of the circulation). This cold current will meet the warm current from the south to form a fishing ground, so there is a fishing ground in the south of ①. So, A is wrong;

B, according to the direction of ocean current, it is clockwise and the latitude is 23 26', so it belongs to the northern hemisphere. Circulation is a cold current in the east and a warm current in the west, so ② is a warm current and ③ is a cold current. So, B is wrong;

C, according to the direction of ocean current, is clockwise, latitude 23 26', so it belongs to the northern hemisphere. Circulation is a cold current in the east and a warm current in the west, so ② is a warm current and ③ is a cold current. The cold current lowers the temperature, increases the air pressure, and the air flows downward, so it will be dry and rainy. Moisture is an important reason to adjust the temperature and narrow the temperature difference, so the cold current ③ reduces the moisture in the air and increases the temperature difference. So, C.

D, according to the direction of the ocean current, it is judged that the ocean circulation near this ocean current is clockwise and the latitude is 23 26', so it is the middle and low latitude in the northern hemisphere. The circulation is cold in the east and warm in the west, so ④ is cold, so D is wrong;

So choose: C.