Ineed answers for 3,4 and five the region i’m doing is russia it’s a good amount of points and all give

Answer for Question 3: Rocky Mountains, Mississippi River, Mississippi Tributaries   and Great Plains .

Answer for Question 4: Oil and Gas

Answer for Question 5: Computers and Smart cars

Hydraulic fracturing and horizontal drilling. These technologies have revolutionized the industry and been critical in greatly expanding the quantity of exploitable oil and gas resources. Oil and gas deposits that were previously inaccessible are now within reach. The resulting increase in supply has caused oil prices to drop by about a third since 2008 and converted the U.S. into a net oil and gas producer and exporter for the first time in half a century.