Why does investing in stocks often yield a higher rate of return than investing in certificates of deposit?

The social contact theory states that

What was the goal of congress when it passed the sherman antitrust act to break up corporate trusts? a. to remove government regulation from businesses b. to return private competition to the marketplace c. to lower taxes on small and medium businesses d. to prevent politicians from investing in businesses e. to increase laissez-faire ideals in the marketplace

Which event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid-1800s? a) world war i b) the civil war c) the irish potato famine d) colonization of the new world plz fastest and right answer gets 94 !