Answer:
Crop rotation is the method of growing a series of different types of crops in the same area across a sequence of growing seasons (China does this). It reduces dependence on just one type of nutrients, it also helps control pests and weeds by the plants developing a resistance all at once.
Explanation:
all are man made for exact answer
Two five dollar bills = ten dollars
10+10+10+10=40+286=326
A zone stays the same length, I zone and h zone get shorter
Answer:
red blood cells or formed in the red bone marrow of bones