2)No, this was not a constant decline. As you see, in 1977 it went from 12 to 14 in 1979 and in 1980, went to 13
3)No, the amount of pesticide has no affect on the eggs. We see in 1967 that the eggs hatched were 75% and the amount of pesticide used was 68. If we look at 1979, the amount of pesticide use was 14 and 98% eggs were hatched.
