Question

1. a country limits the number of cars it will import from another country. what type of trade barrier is being used?

Explanation:

Trade barriers include quotas, tariffs, etc. A quota is a limit on the quantity of a good that can be imported. Here, the country is limiting the number of cars imported, which matches the definition of a quota (a type of non - tariff trade barrier that restricts the quantity of imports).

Answer:

The trade barrier used is a quota.