Provide two ways to modify soil pH, one to increase it and one to decrease it
What will be an ideal response?
• To raise the soil pH, agricultural limestone (contains calcium) or dolomitic
limestone (contains calcium and magnesium) are used.
• To lower the pH, sulfur-containing compounds are used.
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The packaged unit accessory used to prevent compressor oil from absorbing refrigerant is a(n) _____
a. economizer b. crankcase heater c. oil defroster d. outdoor thermostat
In 1848, the Free Soil party platform advocated all of the following EXCEPT
A. support of the Wilmot Proviso. B. federal aid for internal improvements. C. free government homesteads for settlers. D. opposition to slavery in the territories. E. permitting slavery in selected western territories acquired through the Mexican War.
What is the purpose of a center differential?
A) Holds vehicle on a hill when the brakes are released B) Keeps rear wheels locked together C) Allows front and rear axles to turn at different speeds D) Routes torque to the center wheels
Express the ratio 20:35 as a fraction in lowest terms.
What will be an ideal response?