Questions

For participating countries NAFTA called for the gradual removal of trade restrictions.

NAFTA is The North American Free Trade Agreement is a treaty signed by Canada, Mexico, and the United States, creating a trilateral trade by removing restrictions on trade in North America. It came into effect on Jan 1st 1994.

A monopoly firm has no well-defined supply curve. In other words, there is no unique supply curve for the monopolist derived from his MC curve.

India   signed   a   historic   deal   to develop    the    strategic    port    of Chabahar  in  Iran  and  agreed  on  a three-nation    pact    to    build    a transport-and-trade corridor through   Afghanistan   that   could help  halve  the  time  and  cost  of doing  business  with  Central  Asia and     Europe.     Developing     the  Chabahar  port  was  seen  as  crucial for  India  because  it  will  not  only allow New Delhi to bypass Pakistan and access global markets but also counter    China’s    expanding influence   in   the   Indian   Ocean region. But the project’s land route through   Afghanistan   remains   a security headache

Error is in second part. Replace ‘has’ with ‘have’. Since ‘parents’ is in plural form it will be followed by the plural form of has, i.e. ‘have’.