Option 4 is correct, i.e. Russia. ● Taiga forest is found in Russia. Extra facts: ● Taiga Forest- ◌ Taiga forest is the largest forest in Siberia. ◌ It covers 25 per cent of the world forest land. ◌ It covers most areas of Canada and Alaska and known as North woods. ◌ Taiga forests are known as snow forests and have coniferous trees such as larches, spruces and pines. ◌ Pine, Cedar are some of the trees varieties found in Coniferous forest(taiga). They are tall, softwood evergreen trees. They are found in cold conditions.