This leader received the “Letter of three hundred” from scientists decrying a decline in biology research. (-5[1])This leader had Machine-Tractor Stations rapidly (-5[1])closed (10[1])and forced farmers to buy the leftover equipment. A visit to the (-5[1])Iowa (10[1]-5[1])farm of Roswell (10[2])Garst (10[3]-5[3])inspired (10[3]-5[1])this (10[2])leader (10[2])to grow new (-5[1])hybridized (10[4])corn (10[2]-5[1])breeds (10[4]-5[2])in his (10[1])country, (10[3])which (10[1])largely failed due to climate (10[1])differences (10[1])with the US. (10[1])This leader recruited Komsomol volunteers to move to new farms in the Virgin Lands program. (10[2]-5[1])At the 20th Congress, (10[1])this leader gave (10[1])a speech titled “On the Cult of Personality (10[1])and Its Consequences” that denounced his (10[1])predecessor (10[1])and signaled the beginning of a relaxation of censorship called this leader’s “Thaw.” (10[1])For 10 points, what Soviet leader gave the “Secret Speech” (10[1])and succeeded Joseph Stalin? (10[1])■END■ (10[9]0[1])