The mixture used to melt ice on Alberta roads usually contains calcium chloride and sodium chloride because
A. sodium chloride is too expensive
B. calcium chloride is inexpensive
C. calcium chloride cannot melt ice at temperatures below -10°C
D. sodium chloride alone will not melt ice if the temperature is too low

the answer is

Explanation:

D. sodium chloride alone will not melt ice if the temperature is too low

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.