Author Question: ____________________ is the percentage of soil surface covered with remains of the last crop. ... (Read 145 times)

fasfsadfdsfa

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___________________ _ is the percentage of soil surface covered with remains of the last crop.
 
  Fill in the blank(s) with correct word

Question 2

There are over 300 million small air-cooled engines in use in the United States.
 
  Indicate whether the statement is true or false



patma1981

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Answer to Question 1

Residue

Answer to Question 2

F



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