What industries in Chechnya are key to the Russian Federation?

oil

minerals

timber

all of the above

All of the above industries are key to the Russian Federation in Chechnya.

All of the above industries are key to the Russian Federation in Chechnya. The oil industry in Chechnya plays a significant role in the Russian economy, as it contains oil reserves and several oilfields. Additionally, Chechnya is known for its rich mineral resources, including deposits of natural gas, coal, and metals such as iron, copper, and lead. The timber industry is also essential, as Chechnya has vast forest areas with various wood species.