Fires used to cook food fall under requirements for open burning

During the 24-hour flow of Qi, which channel is full from 5 a.m. to 7 a.m.?

a. Urinary bladder b. Large intestine c. Liver d. Gall bladder

The conversion of liquid water to steam increases its volume approximately _________, which displaces an equal volume of air, thereby reducing the volume of oxygen available for the oxidation reaction

a. 1,600 times b. 10 timesc, 500 times d. 333 times