Which statements describe russia's water systems? select all that apply. commercial fishing operates year-round on the volga.
russian rivers provide energy for the nation.
some water systems are unnavigable for a portion of the year.
the world's largest freshwater lake is in russia.
there are few water resources in russia.

Which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

What is the reason for the “scramble for africa”?

What factors britain to become an industrial and commercial power?