Geographic public weather system

Figure 4 The shadow of the tree faces southwest, so the sun is in the northeast. It rises in the northeast and falls in the northwest, and it is judged as summer. Argentina is in the southern hemisphere. Winter is coming, and the grassland in pampas is yellow.

Question 8: I think it can be explained by Baidu Encyclopedia. "The main reason for the large range and frequent occurrence of strong convective weather in some areas is that the cold air in the south is extremely active, and the cold air in the south frequently collides with the wet airflow, which is very unstable. This humid and warm atmosphere will produce strong vertical movement in the hot afternoon of midsummer, which will lead to strong convective weather. "

After the low-pressure cyclone, the temperature rose to hot and humid, and then the high-pressure cyclone came, and the cold air collided with the wet air to produce strong convective rainfall.