Answer:
The Cheka (sometimes called VeCheka) was the much-feared Bolshevik security agency, formed to identify and eradicate counter-revolutionary activity.
Five factors that spurred industrial growth in the late 1800's are Abundant natural resources (coal, iron, oil); Abundant labor supply; Railroads; Labor saving technological advances (new patents) and Pro-Business government policies.
Why were they killed? There is not enough information.
