Can a triangle have sides of 4, 6, 12,

No. Since the longest length is 12, then the 4 and the 6 cannot possible reach both points. Put the 4 and the 6 in a straight line, and even then it only has a length of 10 units, not enough to reach 12

The answer to this question is  c. pharmaceutical accumulation  reclaimed water refers to the water that being used again after it already  used for agricultural purposes.this type of water often contains pharmaceutical accumulation because of the chemical fertilizer that is used for the plants is absorbed into the water.

Build a market-oriented economy;