The diagram below shows stream gradient. if a stream has a horizontal distance of 20 km and begins at an elevation 100 m higher than where it ends, what is its stream gradient?
a. 20 km + 100 m = 120 km/m
b. 100 m / 20 km = 5 m/km
c. 100 m × 20 km = 2000 m/km
d. 20 km / 100 m = 0.20 km/m

Lloyd’s of london was one of the first institutions to offer insurance to merchants and joint-trade companies. a major part of the insurance system involved people who agreed to take responsibility for the insured losses in return for a fee. what were these risk-takers known as? a. joint-stock companies b. investors c. underwriters d. merchants e. capitalists

Which significant event in texas history occurred in 1876?

What event started the space race and made americans feel their security was threatened a.) alan shepard's suborbital flight. b.) the launch of sputnik c.) the launch of explorer d.) the cuban missle crisis