Allelopathic chemicals, once added to soil, usually make the affected soil unsuitable for any plant life for periods of years
Indicate whether the statement is true or false
FALSE
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Sin of an angle = 
?
Answer the following statement true (T) or false (F)
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The reproduction of cells is controlled to large degree by plant hormones known as:
a. Gibberellins c. Auxins b. Cytokins d. Abscisic acids
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Which type of robotic system is known for a cubic or rectangular work envelope?
A. Spherical B. Articulated C. Cartesian D. Delta
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The buttress thread is commonly used in situations where tubular features are screwed together and lateral forces are exerted in one direction.
Answer the following statement true (T) or false (F)
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