The El Nino event of 19721973, one of the first to be studied in depth, reduced the annual Peruvian anchovy catch by more than ____ percent.
a. 10
b. 20
c. 30
d. 40
e. 50
Question 2
Because of the larger frictional drag in water, ocean currents move ____ the prevailing winds above.
a. more slowly than
b. faster than
c. at the same speed as
d. in opposite direction to
e. perpendicular to