The active fraction of soil organic matter largely accounts for which of the benefits of adding organic matter to soils?

A) increased CEC
B) increased water holding capacity
C) increased microbial activity
D) increased aggregate stability
E) both C and D


E

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?Which letter represents a normal distribution?   

A. ?A B. ?B C. ?C D. ?D

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Express 121°58' as decimal degrees.  Round the answer to 2 decimal places if necessary.

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

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Technician A says that the ECU is usually mounted close to the components it manages. Technician B says that inheavy-equipment applications, the devices must be dirt-free. Who is correct?

A. Technician A B. Technician B C. Both D. Neither

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The lower the GWP number, the _________

A) Lower the global warming potential B) Higher the global warming potential C) Closer it is to the ground D) The more poisonous

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