The  is the maximum amount of fuel mixed in air that will cause an explosion.

, such as paper, trash, some plastics, wood, and cloth, fuel class A fires. A rule of thumb is that if it leaves an ash trail, it is a Class A fire.

fires are fueled by vegetable or animal cooking oils or fats common in cooking operations.

19). 

16). 

11). 

24). 

14). 

7). 

Past Participle: Complete the following sentence with the correct verb form. Los quehaceres de la casa están _______________ (hacer)