Answer the following question given this paragraph: Sometimes air doesn't mix in the troposphere. This happens when air is cooler close to the ground than it is above. The cool air is dense, so it stays near the ground. This is called a temperature inversion ( Figure below ). An inversion can trap air pollution near the surface. Temperature inversions are more common in the winter. Can you explain why?. Q: In what season are temperature inversions more common? A:
Available options:
+ spring;
+ autumn;
+ summer;
+ winter;
winter