U.S policy makers and legislators were not convinced that there ...

[soccerdreamer_17]

U.S policy makers and legislators were not convinced that there was a need for stricter enforcement of mandatory emission limits; they prefer the creation of markets to buy and sell pollution credits, a system otherwise known as __________.
 
  a. cap and balance
  b. emit and pay
  c. voluntary compliance
  d. trade and tax
  e. cap and trade

Question 2

During the first half of the 19th century
 
  a. Irish workers were excluded from skilled manual jobs in northern U.S. cities.
  b. Irish and southern and eastern European immigrants were excluded from skilled manual jobs in northern U.S. cities.
  c. Irish workers took over manual jobs from free black workers in northern U.S. cities.
  d. Irish workers had yet to arrive in significant numbers.

[chereeb]

Answer to Question 1

e

Answer to Question 2

c

[soccerdreamer_17]

Gracias!

[tranoy]

Excellent