What did Russia become the leading producer of?

Russia is among the world's leading producers of oil, extracting about one-fifth of the global total. It also is responsible for more than one-fourth of the world's total natural gas output. The great bulk of oil and natural gas comes from the huge fields that underlie the northern part of the West Siberia region.

Explanation:

these the citzens and goverment come to terms some of the amendments gave the states more power then the goverment and some protocted americans rights

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.