What is the capital of Finland​

Helsinki

Explanation:

Helsinki, Swedish Helsingfors, capital of Finland. It is the leading seaport and industrial city of the nation. Helsinki lies in the far south of the country, on a peninsula that is fringed by fine natural harbours and that protrudes into the Gulf of Finland.

the capital of Finland is Helsinki. Helsinki, the sustainable capital of Finland, is a vibrant seaside city of beautiful islands and great green urban areas. Helsinki marches to a wonderful and unique beat of its own with dynamic food, design, architecture – and sauna! – scenes. Helsinki and its Nordic culture are made by the locals.

c

explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long  

answer; the automatic system because it is a "gut reactor"