Question Assignment description

Use the figures under to
estimate the realm of the center-pivot irrigation (CPI) fields in 1991, 2000,
and 2004. CPI-irrigated fields seem as inexperienced circles on the satellite tv for pc photos.
Every circle covers roughly zero.166 km2  (1/6 km2).  For this Question Assignment, we are going to concentrate on the examine
space outlined in black in every of the three photos.
a. 
How
a lot land was irrigated within the black sq. in 1991?  ________km2
b. 
How
a lot land was irrigated within the black sq. in 2000?  ________km2
c. 
How
a lot land was irrigated within the black sq. in 2004?  ________km2

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