Answer:
To protect against foreign competition
Step-by-step explanation:
Governments may impose tariffs to raise revenue or to protect domestic industries—especially nascent ones—from foreign competition. By making foreign-produced goods more expensive, tariffs can make domestically produced alternatives seem more attractive.
Governments that use tariffs to benefit particular industries often do so to protect companies and jobs. Tariffs can also be used as an extension of foreign policy: Imposing tariffs on a trading partner's main exports is a way to exert economic leverage.