Why do we use trade barriers? what is the purpose?

Reasons For Using Trade Barriers.  As for protecting domestic producers, some countries use trade barriers is to protect immature domestic producers and industries that cannot effectively compete with foreign products. Trade barriers makes imported goods and products less attractive than locally produced goods.                                                                                                                    

answer: b. false

the staff is a set of five horizontal lines and four spaces which represent a different musical pitch. the lines and the spaces are numbered from bottom to top, the bottom line is the first line and the fifth line is the line on the top. the notes on the top of the staff (fifth line) have a higher pitch than a note at the bottom of the staff.