Hardpans, water-logged soil, and ____ prevent roots from growing deeply

a. micropores
b. bedrock
c. minerals
d. mulch


B

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The water table is _____.

a. a document identifying all water sources on the job site b. a sump where groundwater is collected for pumping c. the elevation at which groundwater is encountered d. an aid to calculating the water percentage in concrete

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The unit of light that is emitted from a light source is called a ___________________.

Fill in the blank(s) with the appropriate word(s).

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Soil compaction:

A) generally occurs when soil is dry and easily ground to a powder. B) rarely occurs in field vegetable production. C) limits the amount of soil that is available for the extraction of water and minerals by roots. D) helps to reduce erosion by making the soil surface resistant to runoff.

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Solve this proportion.

Fill in the blank(s) with the appropriate word(s).

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