One of the usefulness of import tariff on imported goods is the

Step 1: Analyze the question The question asks for one useful purpose of an import tariff (a tax placed on goods brought into a country from abroad).

Step 2: Explain the concept An import tariff makes foreign goods more expensive in the local market. Governments use this for several reasons:

• To protect infant (young) industries from cheap foreign competition
• To raise revenue for the government
• To discourage excessive importation
• To improve the balance of trade

Step 3: Evaluate each option

• A. Encouragement of importation: Wrong. A tariff raises the price of imports and so discourages importation.
• B. Multiplication of foreign goods: Wrong. Tariffs tend to reduce the quantity of foreign goods entering the country.
• C. Protection of infant industries: Correct. Newly established local industries cannot yet compete with big, established foreign firms. A tariff raises the price of the foreign competitors' goods, giving local producers room to grow, for example Nigerian manufacturers of textiles or cement.
• D. Saving of money: Too vague. A tariff may reduce foreign exchange spending indirectly, but "saving of money" is not the standard stated purpose of tariffs. It is not the best answer.

Step 4: Answer The correct answer is C. protection of infant industries.

Tip: In Economics and Geography questions about tariffs, remember "Tariff = Taxes to Tame foreign competition." Whenever you see "import tariff" or "import restriction", think protect local/infant industries, raise revenue, and reduce imports. Any option saying tariffs encourage imports is almost always wrong.