Find the center of the low, which is marked with the letter l. what type of front has formed here? what happens to the maritime tropical air in this type of front?

A stationary front is depicted in the picture at L. A stationary from is a narrow zone separating two air masses in which neither air mass is displacing the other. When this occurs there is a stall in the motion of the front. The blue triangles point away from the cold air and the red semicircles point away from the warm air. 

That is false the sun’s core does not fusion