The picture is a representation of the Norfolk soil. a. Calculate the metric tons (Mg) of one hectare of the A horizon. (3 pts) Mass= b. Calculate the metric tons (Mg) of one hectare of the E horizon. (3 pts) Mass= c. Calculate the metric tons (Mg) of one hectare of the B horizon. (3 pts) Mass= d. Calculate the total metric tons (Mg) of one hectare of the Norfolk soil. (1 pt) Total Mass 1 ha = 10,000 m A horizon E horizon B horizon. 22 cm, bulk density = 1.37 Mg/m 14 cm, bulk density = 1.25 Mg/m 74 cm, bulk density = 1.48 Mg/m