Which of the following resources have been the main contributors to Russia’s wealth in recent years?

A.
coal and iron

B.
hydropower and timber

C.
gold and silver

D.
oil and natural gas

D. oil and natural gas

To determine which of the resources have been the main contributors to Russia's wealth in recent years, we need to analyze the country's economic data and trends. There are several ways to access this information:

1. Government reports and publications: The Russian government often publishes reports regarding the country's economy, including data on the contribution of various resources to its wealth. These reports may be available on official government websites or through statistical agencies.

2. Nonprofit and research organizations: Many organizations, such as think tanks and research institutes, study and analyze the Russian economy. They often publish reports and studies that provide insights into the main contributors to Russia's wealth. Examples include the World Bank, the International Monetary Fund (IMF), and RAND Corporation.

3. News and financial media: News outlets and financial media often cover and discuss the Russian economy. Analysts and commentators may provide information and insights into the resources that contribute most significantly to Russia's wealth. Online news sources and financial websites provide up-to-date information on economic trends and performances.

Once you have accessed relevant information from these sources, you can analyze the data and determine which of the resources have been the main contributors to Russia's wealth in recent years.

The main contributors to Russia's wealth in recent years have been:

D. Oil and natural gas.