Hey scientist have been working for 15 years to develop a new type of plastic material But she has not yet been successful which of the following best explains why her work is still a success

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.

The enviroment with hedge hogs

Asmall closed hole formed in an outwash plain or moraine. forms when a  glacier retreats then remains stationary. 

Answerland;