(question 21-25) Crop circles are made up of_______. ()
A. planks and ropes
B. geometrical shapes
C. plastic tubes
D. wheat
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In recent years crop circles have become_______.()
A. more geometrical
B. larger
C. stranger
D. more man-made
Paranormal theories argue the circles are made by_______. ()
A. hoaxers
B. garden rollers
C. farmers
D. aliens
The highest number of reports is in________. ()
A. England
B. America
C. Australia
D. Brazil
The soil within crop circles has been found to________. ()
A. have a higher level of protein
B. be of a higher temperature
C. contain an increased level of iron
D. have a different chemical composition
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