How many crew members did Zheng He command? a.
16,000
c.
40,000
b.
32,000
d.
28,000

D.) 28,000

Explanation:

D.28,000 is the answer

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

some people are just against it im not sure but i think everyone deserves to be treated equally i think people have a problem with it because its different and not like everything else i hope this !

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