Why is a large quantity of water used in industrial processes in the U.S. purified by desalinization?
A) The sources are brackish or metal ion rich.
B) The sources are ocean water.
C) There is not enough fresh water.
D) It is less expensive than using fresh water.
E) none of the above
Question 2
Why are children more susceptible to vitamin deficiencies than adults?
A) Children have not built up a vitamin reserve in their fat stores.
B) Children are growing faster than adults and therefore need more vitamins.
C) Adults eat more than children and take in more vitamins in their food.
D) Adults bodies do not degrade vitamins as fast as a child's body.
E) none of the above