The doctrine of ________________ emerged once both the United States and Soviet Union developed invulnerable retaliatory capabilities

Major obstacles to the use of wastewater technologies available to municipalities and industries to minimize the discharge of contaminants is:

A. environmental groups B. government regulations C. lack of citizen support D. construction and operation costs

Segregation of African Americans in the northern states has most often taken the form of de jure segregation

Indicate whether this statement is true or false.