The soil is sandy loam with 0.5% organic matter. A poorly farming practice of up and down slope is followed resulting into a value of 1. The area has poor rainfall pattern with a value of 0.1. The field has length of 200m at 10% slope and crop management actor of 70%. The average soil loss is 33 tonnes/ha. What is the factor of erodability? Help me pls.

According to the chart above, which of the following events occurred in los angeles between 1940 and 1970? i. the white population increased. ii. the hispanic and black populations increased. iii. the total population increased. iv. non-whites became a majority in the city. a. iii. and iv. only b. i., ii., and iii. only c. ii., iii., and iv. only d. i., ii., iii., and iv.