Which of the following is a recent technological breakthrough that has had as great an impact as the invention of paper?
a. communication via telegraph
b. mass printing of books
c. electronic communication
d. the invention of the airplane

Hi how are i have some questions about english subject can you answer for me ?

Do you share the same pr a different opinions?

Identify the trade regulation concept described in each scenario. protectionism free trade trade war country a and country b want to develop their respective export markets. both countries have highly developed agricultural, industrial, and service sectors. the countries decide to initially lower trade barriers and eventually remove them completely. arrowright country a has an agrarian economy with an emerging industrial sector. to allow domestic industries to grow, country a applies quotas on all industrial products except those that are used as resources. arrowright country a passes an economic policy that will indirectly give its own companies an advantage over country b’s companies. country b alleges that the policy violates the countries’ trade agreement and imposes retaliatory tariffs. arrowright