Why are weeds considered pests?

What will be an ideal response?


Weeds can harbor insects and diseases, compete with plants for nutrients and water,
block sunlight, lower the quality of a crop, and spread rapidly.

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The chemical in CFCs that contributes to ozone depletion is:

A) Chlorine. B) Hydrogen. C) Carbon. D) Fluorine.

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When running the primary and secondary evaporator drain lines:

A) Always run the horizontal portions straight and level. B) Always run both drains separately. C) Always trap both drain lines. D) Always run both drains into a common drain line to avoid reverse flow from one drain to the other.

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Most of the poultry raised in the United States are grown under contract with small farmers.

Answer the following statement true (T) or false (F)

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Using RPM=4CS/D, how fast should a 1/2 in. drill turn when drilling mild steel in a drill press if CS is 90 SFPM?

A) 720 RPM B) 360 RPM C) 180 RPM D) 90 RPM

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