How was the interstate highway system established in the United ...

[rachel9]

How was the interstate highway system established in the United States that led to the proliferation of air pollution problems?
 
  What will be an ideal response?

Question 2

What usually happens when a labor agreement expires before a new labor agreement is voted on by union members?
 
  What will be an ideal response?

[moormoney]

Answer to Question 1

President Dwight Eisenhower established the interstate highway system in the United States during the 1950s to ensure that the United States would have viable transportation systems in all of the fifty states of the United States. President Eisenhower also realized this was necessary for having successful military operations.

Answer to Question 2

If a labor union contract expires before another union contract is agreed upon and signed the workers will go on strike until the new labor agreement is signed.

[rachel9]

Both answers were spot on, thank you once again

[moormoney]

Great! Please up vote