____________________ is the percentage of soil surface covered with remains of the last crop. ...

____________________ 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

Question 3

Which of the following would be planted earliest in the year?
 
  a. corn c. cotton
  b. small grains d. soybean

Question 4

Until the invention of the internal combustion engine, engines burned fuel outside the engines.
 
  Indicate whether the statement is true or false

Question 5

Which of the following would most likely be used to plant corn?
 
  a. cultipacker seeder c. no-till grassland drill
  b. grain drill d. row crop planter

Question 6

Lubricants are used to keep engine parts running smoothly.
 
  Indicate whether the statement is true or false

Question 7

Which of the following would most likely be used to plant a restored prairie?
 
  a. cultipacker seeder c. no-till grassland drill
  b. grain drill d. row crop planter