In extremely acid soils (pH 3.0 to 4.0 ) most of the Al3+ and H+ ions are bound tightly by organic matter and silicate clays and are not readily exchangeable
Indicate whether the statement is true or false
TRUE
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Determine the final ratio of the following: Transmission first gear has a ratio of 2.99:1; drive axle has 3.73:1.
Fill in the blank(s) with the appropriate word(s).
Approximately what proportion of veterinarians in the United States are engaged in private or corporate clinical practice?
A. One-fourth B. One- third C. One-half D. Two-thirds E. Three-fourths
Which of the following statements regarding chillers is TRUE?
A) Dry (direct expansion) chillers require less refrigerant than do flooded chillers. B) Flooded chillers have less potential for freeze-ups than other chillers. C) Regional zone chillers are more cost-effective than centralized units. D) Top-loaded chillers do not use shell-and-tube arrangements.
Refrigerant piping must be able to adequately carry both refrigerant and:
A) Air. B) Electricity. C) Oil. D) Nitrogen.